chore: bump version to 1.5.3

* add clean unused ble instances
* moved subscribe to notify to another method
* set date/time on BLE sensors

gulpfile.js

@@ -34,6 +34,10 @@ let paths = {
     {
       src: 'src_data/locales/*.json',
       dest: 'data/static/locales/'
+    },
+    {
+      src: 'src_data/*.json',
+      dest: 'data/static/'
     }
   ],
   static: [

lib/NetworkUtils/NetworkMgr.h

@@ -148,10 +148,10 @@ namespace NetworkUtils {
       // set policy manual for work 13 ch
       {
         #ifdef ARDUINO_ARCH_ESP8266
-        wifi_country_t country = {"CN", 1, 13, WIFI_COUNTRY_POLICY_AUTO};
+        wifi_country_t country = {"JP", 1, 14, WIFI_COUNTRY_POLICY_MANUAL};
         wifi_set_country(&country);
         #elif defined(ARDUINO_ARCH_ESP32)
-        const wifi_country_t country = {"CN", 1, 13, CONFIG_ESP32_PHY_MAX_WIFI_TX_POWER, WIFI_COUNTRY_POLICY_AUTO};
+        const wifi_country_t country = {"JP", 1, 14, CONFIG_ESP32_PHY_MAX_WIFI_TX_POWER, WIFI_COUNTRY_POLICY_MANUAL};
         esp_wifi_set_country(&country);
         #endif
       }
@@ -384,7 +384,7 @@ namespace NetworkUtils {
   protected:
     const unsigned int reconnectInterval = 15000;
     const unsigned int failedConnectTimeout = 185000;
-    const unsigned int connectionTimeout = 5000;
+    const unsigned int connectionTimeout = 10000;
     const unsigned int resetConnectionTimeout = 90000;
 
     YieldCallback yieldCallback = []() {

platformio.ini

@@ -14,7 +14,7 @@ extra_configs = secrets.default.ini
 core_dir = .pio
 
 [env]
-version = 1.5.2
+version = 1.5.3
 framework = arduino
 lib_deps = 
 	bblanchon/ArduinoJson@^7.3.0

src/MainTask.h

@@ -38,6 +38,7 @@ protected:
   unsigned long heatingDisabledTime = 0;
   PumpStartReason extPumpStartReason = PumpStartReason::NONE;
   unsigned long externalPumpStartTime = 0;
+  bool ntpStarted = false;
   bool telnetStarted = false;
   bool emergencyDetected = false;
   unsigned long emergencyFlipTime = 0;
@@ -109,6 +110,16 @@ protected:
     }
 
     if (network->isConnected()) {
+      if (!this->ntpStarted) {
+        if (strlen(settings.system.ntp.server)) {
+          configTime(0, 0, settings.system.ntp.server);
+          setenv("TZ", settings.system.ntp.timezone, 1);
+          tzset();
+
+          this->ntpStarted = true;
+        }
+      }
+
       if (!this->telnetStarted && telnetStream != nullptr) {
         telnetStream->begin(23, false);
         this->telnetStarted = true;
@@ -124,6 +135,10 @@ protected:
       Sensors::setConnectionStatusByType(Sensors::Type::MANUAL, !settings.mqtt.enabled || vars.mqtt.connected, false);
 
     } else {
+      if (this->ntpStarted) {
+        this->ntpStarted = false;
+      }
+
       if (this->telnetStarted) {
         telnetStream->stop();
         this->telnetStarted = false;

src/MqttTask.h

@@ -120,7 +120,6 @@ protected:
     #endif
 
     // client settings
-    this->client->setKeepAliveInterval(15000);
     this->client->setTxPayloadSize(256);
     #ifdef ARDUINO_ARCH_ESP8266
     this->client->setConnectionTimeout(1000);
@@ -199,6 +198,7 @@ protected:
       this->haHelper->updateCachedTopics();
 
       this->client->stop();
+      this->client->setKeepAliveInterval(settings.mqtt.interval * 10000);
       this->client->setId(networkSettings.hostname);
       this->client->setUsernamePassword(settings.mqtt.user, settings.mqtt.password);
       this->client->beginWill(this->haHelper->getDeviceTopic(F("status")).c_str(), 7, true, 1);

src/SensorsTask.h

@@ -31,12 +31,19 @@ protected:
   const unsigned short dallasSearchInterval = 60000;
   const unsigned short dallasPollingInterval = 10000;
   const unsigned short globalPollingInterval = 15000;
+  #if USE_BLE
+  const unsigned int bleSetDtInterval = 7200000;
+  #endif
 
   std::unordered_map<uint8_t, OneWire> owInstances;
   std::unordered_map<uint8_t, DallasTemperature> dallasInstances;
   std::unordered_map<uint8_t, unsigned long> dallasSearchTime;
   std::unordered_map<uint8_t, bool> dallasPolling;
   std::unordered_map<uint8_t, unsigned long> dallasLastPollingTime;
+  #if USE_BLE
+  std::unordered_map<uint8_t, bool> bleSubscribed;
+  std::unordered_map<uint8_t, unsigned long> bleLastSetDtTime;
+  #endif
   unsigned long globalLastPollingTime = 0;
 
   #if defined(ARDUINO_ARCH_ESP32)
@@ -83,8 +90,11 @@ protected:
       pollingNtcSensors();
       this->yield();
 
+      #if USE_BLE
+      cleanBleInstances();
       pollingBleSensors();
       this->yield();
+      #endif
 
       this->globalLastPollingTime = millis();
     }
@@ -277,7 +287,7 @@ protected:
       unsigned long ts = millis();
 
       if (this->dallasPolling[gpio]) {
-        auto minPollingTime = instance.millisToWaitForConversion(12) * 2;
+        unsigned long minPollingTime = instance.millisToWaitForConversion(12) * 2;
         unsigned long estimatePollingTime = ts - this->dallasLastPollingTime[gpio];
 
         // check conversion time
@@ -348,26 +358,6 @@ protected:
     }
   }
 
-  void pollingBleSensors() {
-    #if USE_BLE
-    if (!NimBLEDevice::isInitialized() && millis() > 5000) {
-      Log.sinfoln(FPSTR(L_SENSORS_BLE), F("Initialized"));
-      BLEDevice::init("");
-      NimBLEDevice::setPower(9);
-    }
-
-    for (uint8_t sensorId = 0; sensorId <= Sensors::getMaxSensorId(); sensorId++) {
-      auto& sSensor = Sensors::settings[sensorId];
-      
-      if (!sSensor.enabled || sSensor.type != Sensors::Type::BLUETOOTH || sSensor.purpose == Sensors::Purpose::NOT_CONFIGURED) {
-        continue;
-      }
-
-      connectToBleDevice(sensorId);
-    }
-    #endif
-  }
-
   void pollingNtcSensors() {
     for (uint8_t sensorId = 0; sensorId <= Sensors::getMaxSensorId(); sensorId++) {
       auto& sSensor = Sensors::settings[sensorId];
@@ -413,17 +403,139 @@ protected:
     }
   }
 
-  bool connectToBleDevice(const uint8_t sensorId) {
+  #if USE_BLE
+  void cleanBleInstances() {
     #if USE_BLE
     if (!NimBLEDevice::isInitialized()) {
-      return false;
+      return;
+    }
+
+    for (auto client : NimBLEDevice::getConnectedClients()) {
+      auto address = client->getPeerAddress();
+      bool used = false;
+
+      for (uint8_t sensorId = 0; sensorId <= Sensors::getMaxSensorId(); sensorId++) {
+        auto& sSensor = Sensors::settings[sensorId];
+        
+        if (!sSensor.enabled || sSensor.type != Sensors::Type::BLUETOOTH || sSensor.purpose == Sensors::Purpose::NOT_CONFIGURED) {
+          continue;
+        }
+        
+        auto pAddress = address.getVal();
+        uint8_t addr[] = {
+          pAddress[5], pAddress[4], pAddress[3],
+          pAddress[2], pAddress[1], pAddress[0]
+        };
+
+        if (isEqualAddress(addr, sSensor.address, sizeof(addr))) {
+          used = true;
+          break;
+        }
+      }
+
+      if (!used) {
+        Log.sinfoln(
+          FPSTR(L_SENSORS_BLE), F("Deleted unused client connected to %s"),
+          address.toString().c_str()
+        );
+
+        NimBLEDevice::deleteClient(client);
+      }
+    }
+    #endif
+  }
+
+  void pollingBleSensors() {
+    if (!NimBLEDevice::isInitialized() && millis() > 5000) {
+      Log.sinfoln(FPSTR(L_SENSORS_BLE), F("Initialized"));
+      BLEDevice::init("");
+      NimBLEDevice::setPower(9);
+    }
+
+    for (uint8_t sensorId = 0; sensorId <= Sensors::getMaxSensorId(); sensorId++) {
+      auto& sSensor = Sensors::settings[sensorId];
+      auto& rSensor = Sensors::results[sensorId];
+      
+      if (!sSensor.enabled || sSensor.type != Sensors::Type::BLUETOOTH || sSensor.purpose == Sensors::Purpose::NOT_CONFIGURED) {
+        continue;
+      }
+
+      auto client = this->getBleClient(sensorId);
+      if (client == nullptr) {
+        continue;
+      }
+
+      if (!client->isConnected()) {
+        this->bleSubscribed[sensorId] = false;
+        this->bleLastSetDtTime[sensorId] = 0;
+
+        if (client->connect()) {
+          Log.sinfoln(
+            FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': connected to %s"),
+            sensorId, sSensor.name, client->getPeerAddress().toString().c_str()
+          );
+
+        } else {
+          Log.swarningln(
+            FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed connecting to %s"),
+            sensorId, sSensor.name, client->getPeerAddress().toString().c_str()
+          );
+
+          continue;
+        }
+      }
+      
+      if (!this->bleSubscribed[sensorId]) {
+        if (this->subscribeToBleDevice(sensorId, client)) {
+          this->bleSubscribed[sensorId] = true;
+
+        } else {
+          this->bleSubscribed[sensorId] = false;
+          client->disconnect();
+          continue;
+        }
+      }
+
+      if (!rSensor.connected) {
+        rSensor.connected = true;
+      }
+
+      if (!this->bleLastSetDtTime[sensorId] || millis() - this->bleLastSetDtTime[sensorId] > this->bleSetDtInterval) {
+        struct tm ti;
+        
+        if (getLocalTime(&ti)) {
+          if (this->setDateOnBleSensor(client, &ti)) {
+            Log.sinfoln(
+              FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s', successfully set date: %02d.%02d.%04d %02d:%02d:%02d"),
+              sensorId, sSensor.name,
+              ti.tm_mday, ti.tm_mon + 1, ti.tm_year + 1900, ti.tm_hour, ti.tm_min, ti.tm_sec
+            );
+
+          } else {
+            Log.swarningln(
+              FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s', failed set date: %02d.%02d.%04d %02d:%02d:%02d"),
+              sensorId, sSensor.name,
+              ti.tm_mday, ti.tm_mon + 1, ti.tm_year + 1900, ti.tm_hour, ti.tm_min, ti.tm_sec
+            );
+          }
+
+          this->bleLastSetDtTime[sensorId] = millis();
+        }
+        
+      }
+    }
+  }
+
+  NimBLEClient* getBleClient(const uint8_t sensorId) {
+    if (!NimBLEDevice::isInitialized()) {
+      return nullptr;
     }
 
     auto& sSensor = Sensors::settings[sensorId];
     auto& rSensor = Sensors::results[sensorId];
 
     if (!sSensor.enabled || sSensor.type != Sensors::Type::BLUETOOTH || sSensor.purpose == Sensors::Purpose::NOT_CONFIGURED) {
-      return false;
+      return nullptr;
     }
     
     uint8_t addr[6] = {
@@ -432,19 +544,20 @@ protected:
     };
     const auto address = NimBLEAddress(addr, 0);
     
-    NimBLEClient* pClient = nullptr;
-    pClient = NimBLEDevice::getClientByPeerAddress(address);
-
+    NimBLEClient* pClient = NimBLEDevice::getClientByPeerAddress(address);
     if (pClient == nullptr) {
       pClient = NimBLEDevice::getDisconnectedClient();
     }
 
     if (pClient == nullptr) {
       if (NimBLEDevice::getCreatedClientCount() >= NIMBLE_MAX_CONNECTIONS) {
-        return false;
+        return nullptr;
       }
 
       pClient = NimBLEDevice::createClient();
+      if (pClient == nullptr) {
+        return nullptr;
+      }
 
       /**
        *  Set initial connection parameters:
@@ -457,28 +570,17 @@ protected:
       pClient->setSelfDelete(false, true);
     }
 
-    if(pClient->isConnected()) {
-      if (!rSensor.connected) {
-        rSensor.connected = true;
-      }
-
-      return true;
+    if (!pClient->isConnected()) {
+      pClient->setPeerAddress(address);
     }
 
-    if (!pClient->connect(address)) {
-      Log.swarningln(
-        FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed connecting to %s"),
-        sensorId, sSensor.name, address.toString().c_str()
-      );
-
-      return false;
-    }
-
-    Log.sinfoln(
-      FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': connected to %s"),
-      sensorId, sSensor.name, address.toString().c_str()
-    );
+    return pClient;
+  }
 
+  bool subscribeToBleDevice(const uint8_t sensorId, NimBLEClient* pClient) {
+    auto& sSensor = Sensors::settings[sensorId];
+    auto pAddress = pClient->getPeerAddress().toString().c_str();
+    
     NimBLERemoteService* pService = nullptr;
     NimBLERemoteCharacteristic* pChar = nullptr;
 
@@ -488,13 +590,13 @@ protected:
     if (!pService) {
       Log.straceln(
         FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed to find env service (%s) on device %s"),
-        sensorId, sSensor.name, serviceUuid.toString().c_str(), address.toString().c_str()
+        sensorId, sSensor.name, serviceUuid.toString().c_str(), pAddress
       );
 
     } else {
       Log.straceln(
         FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': found env service (%s) on device %s"),
-        sensorId, sSensor.name, serviceUuid.toString().c_str(), address.toString().c_str()
+        sensorId, sSensor.name, serviceUuid.toString().c_str(), pAddress
       );
 
       // 0x2A6E - Notify temperature x0.01C (pvvx)
@@ -506,7 +608,7 @@ protected:
         if (pChar && (pChar->canNotify() || pChar->canIndicate())) {
           Log.straceln(
             FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': found temp char (%s) in env service on device %s"),
-            sensorId, sSensor.name, charUuid.toString().c_str(), address.toString().c_str()
+            sensorId, sSensor.name, charUuid.toString().c_str(), pAddress
           );
 
           pChar->unsubscribe();
@@ -561,14 +663,14 @@ protected:
             Log.straceln(
               FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': subscribed to temp char (%s) in env service on device %s"),
               sensorId, sSensor.name,
-              charUuid.toString().c_str(), address.toString().c_str()
+              charUuid.toString().c_str(), pAddress
             );
 
           } else {
             Log.swarningln(
               FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed to subscribe to temp char (%s) in env service on device %s"),
               sensorId, sSensor.name,
-              charUuid.toString().c_str(), address.toString().c_str()
+              charUuid.toString().c_str(), pAddress
             );
           }
         }
@@ -583,7 +685,7 @@ protected:
         if (pChar && (pChar->canNotify() || pChar->canIndicate())) {
           Log.straceln(
             FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': found temp char (%s) in env service on device %s"),
-            sensorId, sSensor.name, charUuid.toString().c_str(), address.toString().c_str()
+            sensorId, sSensor.name, charUuid.toString().c_str(), pAddress
           );
 
           pChar->unsubscribe();
@@ -638,14 +740,14 @@ protected:
             Log.straceln(
               FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': subscribed to temp char (%s) in env service on device %s"),
               sensorId, sSensor.name,
-              charUuid.toString().c_str(), address.toString().c_str()
+              charUuid.toString().c_str(), pAddress
             );
 
           } else {
             Log.swarningln(
               FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed to subscribe to temp char (%s) in env service on device %s"),
               sensorId, sSensor.name,
-              charUuid.toString().c_str(), address.toString().c_str()
+              charUuid.toString().c_str(), pAddress
             );
           }
         }
@@ -654,7 +756,7 @@ protected:
       if (!tempNotifyCreated) {
         Log.swarningln(
           FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': not found supported temp chars in env service on device %s"),
-          sensorId, sSensor.name, address.toString().c_str()
+          sensorId, sSensor.name, pAddress
         );
 
         pClient->disconnect();
@@ -672,7 +774,7 @@ protected:
           if (pChar && (pChar->canNotify() || pChar->canIndicate())) {
             Log.straceln(
               FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': found humidity char (%s) in env service on device %s"),
-              sensorId, sSensor.name, charUuid.toString().c_str(), address.toString().c_str()
+              sensorId, sSensor.name, charUuid.toString().c_str(), pAddress
             );
 
             pChar->unsubscribe();
@@ -727,14 +829,14 @@ protected:
               Log.straceln(
                 FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': subscribed to humidity char (%s) in env service on device %s"),
                 sensorId, sSensor.name,
-                charUuid.toString().c_str(), address.toString().c_str()
+                charUuid.toString().c_str(), pAddress
               );
 
             } else {
               Log.swarningln(
                 FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed to subscribe to humidity char (%s) in env service on device %s"),
                 sensorId, sSensor.name,
-                charUuid.toString().c_str(), address.toString().c_str()
+                charUuid.toString().c_str(), pAddress
               );
             }
           }
@@ -743,7 +845,7 @@ protected:
         if (!humidityNotifyCreated) {
           Log.swarningln(
             FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': not found supported humidity chars in env service on device %s"),
-            sensorId, sSensor.name, address.toString().c_str()
+            sensorId, sSensor.name, pAddress
           );
         }
       }
@@ -757,13 +859,13 @@ protected:
       if (!pService) {
         Log.straceln(
           FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed to find battery service (%s) on device %s"),
-          sensorId, sSensor.name, serviceUuid.toString().c_str(), address.toString().c_str()
+          sensorId, sSensor.name, serviceUuid.toString().c_str(), pAddress
         );
 
       } else {
         Log.straceln(
           FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': found battery service (%s) on device %s"),
-          sensorId, sSensor.name, serviceUuid.toString().c_str(), address.toString().c_str()
+          sensorId, sSensor.name, serviceUuid.toString().c_str(), pAddress
         );
 
         // 0x2A19 - Notify the battery charge level 0..99% (pvvx)
@@ -775,7 +877,7 @@ protected:
           if (pChar && (pChar->canNotify() || pChar->canIndicate())) {
             Log.straceln(
               FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': found battery char (%s) in battery service on device %s"),
-              sensorId, sSensor.name, charUuid.toString().c_str(), address.toString().c_str()
+              sensorId, sSensor.name, charUuid.toString().c_str(), pAddress
             );
 
             pChar->unsubscribe();
@@ -830,14 +932,14 @@ protected:
               Log.straceln(
                 FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': subscribed to battery char (%s) in battery service on device %s"),
                 sensorId, sSensor.name,
-                charUuid.toString().c_str(), address.toString().c_str()
+                charUuid.toString().c_str(), pAddress
               );
 
             } else {
               Log.swarningln(
                 FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed to subscribe to battery char (%s) in battery service on device %s"),
                 sensorId, sSensor.name,
-                charUuid.toString().c_str(), address.toString().c_str()
+                charUuid.toString().c_str(), pAddress
               );
             }
           }
@@ -846,18 +948,33 @@ protected:
         if (!batteryNotifyCreated) {
           Log.swarningln(
             FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': not found supported battery chars in battery service on device %s"),
-            sensorId, sSensor.name, address.toString().c_str()
+            sensorId, sSensor.name, pAddress
           );
         }
       }
     }
 
     return true;
-    #else
-    return false;
-    #endif
   }
 
+  bool setDateOnBleSensor(NimBLEClient* pClient, const struct tm *ptm) {
+    auto ts = mkgmtime(ptm);
+
+    uint8_t data[5] = {};
+    data[0] = 0x23;
+    data[1] = ts & 0xff;
+    data[2] = (ts >> 8) & 0xff;
+    data[3] = (ts >> 16) & 0xff;
+    data[4] = (ts >> 24) & 0xff;
+
+    return pClient->setValue(
+      NimBLEUUID((uint16_t) 0x1f10),
+      NimBLEUUID((uint16_t) 0x1f1f),
+      NimBLEAttValue(data, sizeof(data))
+    );
+  }
+  #endif
+
   void updateConnectionStatus() {
     for (uint8_t sensorId = 0; sensorId <= Sensors::getMaxSensorId(); sensorId++) {
       auto& sSensor = Sensors::settings[sensorId];
@@ -882,7 +999,8 @@ protected:
   }
 
   static bool isEqualAddress(const uint8_t *addr1, const uint8_t *addr2, const uint8_t length = 8) {
-    bool result = true;
+    return memcmp(addr1, addr2, length) == 0;
+    /*bool result = true;
 
     for (uint8_t i = 0; i < length; i++) {
       if (addr1[i] != addr2[i]) {
@@ -891,7 +1009,7 @@ protected:
       }
     }
 
-    return result;
+    return result;*/
   }
 
   static bool isEmptyAddress(const uint8_t *addr, const uint8_t length = 8) {

src/Settings.h

@@ -36,6 +36,11 @@ struct Settings {
       unsigned short port = DEFAULT_TELNET_PORT;
     } telnet;
 
+    struct {
+      char server[49] = "pool.ntp.org";
+      char timezone[49] = "UTC0";
+    } ntp;
+
     UnitSystem unitSystem = UnitSystem::METRIC;
     byte statusLedGpio = DEFAULT_STATUS_LED_GPIO;
   } system;

src/strings.h

@@ -135,6 +135,7 @@ const char S_MQTT[]                                 PROGMEM = "mqtt";
 const char S_NAME[]                                 PROGMEM = "name";
 const char S_NATIVE_HEATING_CONTROL[]               PROGMEM = "nativeHeatingControl";
 const char S_NETWORK[]                              PROGMEM = "network";
+const char S_NTP[]                                  PROGMEM = "ntp";
 const char S_N_FACTOR[]                             PROGMEM = "n_factor";
 const char S_OFFSET[]                               PROGMEM = "offset";
 const char S_ON_ENABLED_HEATING[]                   PROGMEM = "onEnabledHeating";
@@ -190,6 +191,7 @@ const char S_TEMPERATURE[]                          PROGMEM = "temperature";
 const char S_THRESHOLD_HIGH[]                       PROGMEM = "thresholdHigh";
 const char S_THRESHOLD_LOW[]                        PROGMEM = "thresholdLow";
 const char S_THRESHOLD_TIME[]                       PROGMEM = "thresholdTime";
+const char S_TIMEZONE[]                             PROGMEM = "timezone";
 const char S_TOTAL[]                                PROGMEM = "total";
 const char S_TRESHOLD_TIME[]                        PROGMEM = "tresholdTime";
 const char S_TURBO[]                                PROGMEM = "turbo";

src/utils.h

@@ -1,5 +1,43 @@
 #include <Arduino.h>
 
+bool isLeapYear(short year) {
+  if (year % 4 != 0) {
+    return false;
+  }
+
+  if (year % 100 != 0) {
+    return true;
+  }
+
+  return (year % 400) == 0;
+}
+
+// convert UTC tm time to time_t epoch time
+// source: https://github.com/cyberman54/ESP32-Paxcounter/blob/master/src/timekeeper.cpp
+time_t mkgmtime(const struct tm *ptm) {
+  const int SecondsPerMinute = 60;
+  const int SecondsPerHour = 3600;
+  const int SecondsPerDay = 86400;
+  const int DaysOfMonth[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+  time_t secs = 0;
+  // tm_year is years since 1900
+  int year = ptm->tm_year + 1900;
+  for (int y = 1970; y < year; ++y) {
+    secs += (isLeapYear(y) ? 366 : 365) * SecondsPerDay;
+  }
+  // tm_mon is month from 0..11
+  for (int m = 0; m < ptm->tm_mon; ++m) {
+    secs += DaysOfMonth[m] * SecondsPerDay;
+    if (m == 1 && isLeapYear(year))
+      secs += SecondsPerDay;
+  }
+  secs += (ptm->tm_mday - 1) * SecondsPerDay;
+  secs += ptm->tm_hour * SecondsPerHour;
+  secs += ptm->tm_min * SecondsPerMinute;
+  secs += ptm->tm_sec;
+  return secs;
+}
+
 inline bool isDigit(const char* ptr) {
   char* endPtr;
   strtol(ptr, &endPtr, 10);
@@ -359,6 +397,10 @@ void settingsToJson(const Settings& src, JsonVariant dst, bool safe = false) {
     telnet[FPSTR(S_ENABLED)] = src.system.telnet.enabled;
     telnet[FPSTR(S_PORT)] = src.system.telnet.port;
 
+    auto ntp = system[FPSTR(S_NTP)].to<JsonObject>();
+    ntp[FPSTR(S_SERVER)] = src.system.ntp.server;
+    ntp[FPSTR(S_TIMEZONE)] = src.system.ntp.timezone;
+
     system[FPSTR(S_UNIT_SYSTEM)] = static_cast<uint8_t>(src.system.unitSystem);
     system[FPSTR(S_STATUS_LED_GPIO)] = src.system.statusLedGpio;
 
@@ -527,6 +569,24 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
       }
     }
 
+    if (!src[FPSTR(S_SYSTEM)][FPSTR(S_NTP)][FPSTR(S_SERVER)].isNull()) {
+      String value = src[FPSTR(S_SYSTEM)][FPSTR(S_NTP)][FPSTR(S_SERVER)].as<String>();
+
+      if (value.length() < sizeof(dst.system.ntp.server) && !value.equals(dst.system.ntp.server)) {
+        strcpy(dst.system.ntp.server, value.c_str());
+        changed = true;
+      }
+    }
+
+    if (!src[FPSTR(S_SYSTEM)][FPSTR(S_NTP)][FPSTR(S_TIMEZONE)].isNull()) {
+      String value = src[FPSTR(S_SYSTEM)][FPSTR(S_NTP)][FPSTR(S_TIMEZONE)].as<String>();
+
+      if (value.length() < sizeof(dst.system.ntp.timezone) && !value.equals(dst.system.ntp.timezone)) {
+        strcpy(dst.system.ntp.timezone, value.c_str());
+        changed = true;
+      }
+    }
+
     if (!src[FPSTR(S_SYSTEM)][FPSTR(S_UNIT_SYSTEM)].isNull()) {
       uint8_t value = src[FPSTR(S_SYSTEM)][FPSTR(S_UNIT_SYSTEM)].as<unsigned char>();
       UnitSystem prevUnitSystem = dst.system.unitSystem;

src_data/locales/en.json

@@ -315,6 +315,11 @@
             "title": "Telnet port",
             "note": "Default: 23"
           }
+        },
+        "ntp": {
+          "server": "NTP server",
+          "timezone": "Timezone",
+          "timezonePresets": "Select preset..."
         }
       },
 

src_data/locales/it.json

@@ -315,6 +315,11 @@
             "title": "Porta Telnet",
             "note": "Default: 23"
           }
+        },
+        "ntp": {
+          "server": "NTP server",
+          "timezone": "Zona oraria",
+          "timezonePresets": "Seleziona preimpostato..."
         }
       },
 

src_data/locales/ru.json

@@ -315,6 +315,11 @@
             "title": "Telnet порт",
             "note": "По умолчанию: 23"
           }
+        },
+        "ntp": {
+          "server": "NTP сервер",
+          "timezone": "Часовой пояс",
+          "timezonePresets": "Выберите пресет..."
         }
       },
 

src_data/pages/settings.html

@@ -85,6 +85,23 @@
                 </label>
               </fieldset>
 
+              <fieldset>
+                <label>
+                  <span data-i18n>settings.system.ntp.server</span>
+                  <input type="text" name="system[ntp][server]" maxlength="48">
+                </label>
+
+                <label>
+                  <span data-i18n>settings.system.ntp.timezone</span>
+                  <div role="group">
+                    <input type="text" name="system[ntp][timezone]" maxlength="48">
+                    <select class="presetTimezones">
+                      <option disabled selected data-i18n>settings.system.ntp.timezonePresets</option>
+                    </select>
+                  </div>
+                  </label>
+              </fieldset>
+
               <fieldset>
                 <label>
                   <span data-i18n>settings.system.statusLedGpio</span>
@@ -746,6 +763,8 @@
           setSelectValue("[name='system[serial][baudrate]']", data.system.serial.baudrate);
           setCheckboxValue("[name='system[telnet][enabled]']", data.system.telnet.enabled);
           setInputValue("[name='system[telnet][port]']", data.system.telnet.port);
+          setInputValue("[name='system[ntp][server]']", data.system.ntp.server);
+          setInputValue("[name='system[ntp][timezone]']", data.system.ntp.timezone);
           setRadioValue("[name='system[unitSystem]']", data.system.unitSystem);
           setInputValue("[name='system[statusLedGpio]']", data.system.statusLedGpio < 255 ? data.system.statusLedGpio : '');
           setBusy('#system-settings-busy', '#system-settings', false);
@@ -886,6 +905,28 @@
           setBusy('#pid-settings-busy', '#pid-settings', false);
         };
 
+        try {
+          const response = await fetch("/static/timezones.json");
+          if (!response.ok) {
+            throw new Error('Response not valid');
+          }
+
+          const result = await response.json();
+          const ptzSelector = document.querySelector(".presetTimezones");
+          for (const ptzName in result) {
+            ptzSelector.appendChild(
+              new Option(ptzName, result[ptzName])
+            );
+          }
+
+          ptzSelector.addEventListener("change", async (event) => {
+            document.querySelector("[name='system[ntp][timezone]']").value = event.target.value;
+          });
+
+        } catch (error) {
+          console.log(error);
+        }
+
         try {
           const response = await fetch("/api/settings", {
             cache: "no-cache",

src_data/timezones.json

@@ -0,0 +1,458 @@
+{
+  "Africa/Abidjan":"GMT0",
+  "Africa/Accra":"GMT0",
+  "Africa/Addis_Ababa":"EAT-3",
+  "Africa/Algiers":"CET-1",
+  "Africa/Asmara":"EAT-3",
+  "Africa/Bamako":"GMT0",
+  "Africa/Bangui":"WAT-1",
+  "Africa/Banjul":"GMT0",
+  "Africa/Bissau":"GMT0",
+  "Africa/Blantyre":"CAT-2",
+  "Africa/Brazzaville":"WAT-1",
+  "Africa/Bujumbura":"CAT-2",
+  "Africa/Cairo":"EET-2EEST,M4.5.5/0,M10.5.4/24",
+  "Africa/Casablanca":"<+01>-1",
+  "Africa/Ceuta":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Africa/Conakry":"GMT0",
+  "Africa/Dakar":"GMT0",
+  "Africa/Dar_es_Salaam":"EAT-3",
+  "Africa/Djibouti":"EAT-3",
+  "Africa/Douala":"WAT-1",
+  "Africa/El_Aaiun":"<+01>-1",
+  "Africa/Freetown":"GMT0",
+  "Africa/Gaborone":"CAT-2",
+  "Africa/Harare":"CAT-2",
+  "Africa/Johannesburg":"SAST-2",
+  "Africa/Juba":"CAT-2",
+  "Africa/Kampala":"EAT-3",
+  "Africa/Khartoum":"CAT-2",
+  "Africa/Kigali":"CAT-2",
+  "Africa/Kinshasa":"WAT-1",
+  "Africa/Lagos":"WAT-1",
+  "Africa/Libreville":"WAT-1",
+  "Africa/Lome":"GMT0",
+  "Africa/Luanda":"WAT-1",
+  "Africa/Lubumbashi":"CAT-2",
+  "Africa/Lusaka":"CAT-2",
+  "Africa/Malabo":"WAT-1",
+  "Africa/Maputo":"CAT-2",
+  "Africa/Maseru":"SAST-2",
+  "Africa/Mbabane":"SAST-2",
+  "Africa/Mogadishu":"EAT-3",
+  "Africa/Monrovia":"GMT0",
+  "Africa/Nairobi":"EAT-3",
+  "Africa/Ndjamena":"WAT-1",
+  "Africa/Niamey":"WAT-1",
+  "Africa/Nouakchott":"GMT0",
+  "Africa/Ouagadougou":"GMT0",
+  "Africa/Porto-Novo":"WAT-1",
+  "Africa/Sao_Tome":"GMT0",
+  "Africa/Tripoli":"EET-2",
+  "Africa/Tunis":"CET-1",
+  "Africa/Windhoek":"CAT-2",
+  "America/Adak":"HST10HDT,M3.2.0,M11.1.0",
+  "America/Anchorage":"AKST9AKDT,M3.2.0,M11.1.0",
+  "America/Anguilla":"AST4",
+  "America/Antigua":"AST4",
+  "America/Araguaina":"<-03>3",
+  "America/Argentina/Buenos_Aires":"<-03>3",
+  "America/Argentina/Catamarca":"<-03>3",
+  "America/Argentina/Cordoba":"<-03>3",
+  "America/Argentina/Jujuy":"<-03>3",
+  "America/Argentina/La_Rioja":"<-03>3",
+  "America/Argentina/Mendoza":"<-03>3",
+  "America/Argentina/Rio_Gallegos":"<-03>3",
+  "America/Argentina/Salta":"<-03>3",
+  "America/Argentina/San_Juan":"<-03>3",
+  "America/Argentina/San_Luis":"<-03>3",
+  "America/Argentina/Tucuman":"<-03>3",
+  "America/Argentina/Ushuaia":"<-03>3",
+  "America/Aruba":"AST4",
+  "America/Asuncion":"<-04>4<-03>,M10.1.0/0,M3.4.0/0",
+  "America/Atikokan":"EST5",
+  "America/Bahia":"<-03>3",
+  "America/Bahia_Banderas":"CST6",
+  "America/Barbados":"AST4",
+  "America/Belem":"<-03>3",
+  "America/Belize":"CST6",
+  "America/Blanc-Sablon":"AST4",
+  "America/Boa_Vista":"<-04>4",
+  "America/Bogota":"<-05>5",
+  "America/Boise":"MST7MDT,M3.2.0,M11.1.0",
+  "America/Cambridge_Bay":"MST7MDT,M3.2.0,M11.1.0",
+  "America/Campo_Grande":"<-04>4",
+  "America/Cancun":"EST5",
+  "America/Caracas":"<-04>4",
+  "America/Cayenne":"<-03>3",
+  "America/Cayman":"EST5",
+  "America/Chicago":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Chihuahua":"CST6",
+  "America/Costa_Rica":"CST6",
+  "America/Creston":"MST7",
+  "America/Cuiaba":"<-04>4",
+  "America/Curacao":"AST4",
+  "America/Danmarkshavn":"GMT0",
+  "America/Dawson":"MST7",
+  "America/Dawson_Creek":"MST7",
+  "America/Denver":"MST7MDT,M3.2.0,M11.1.0",
+  "America/Detroit":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Dominica":"AST4",
+  "America/Edmonton":"MST7MDT,M3.2.0,M11.1.0",
+  "America/Eirunepe":"<-05>5",
+  "America/El_Salvador":"CST6",
+  "America/Fort_Nelson":"MST7",
+  "America/Fortaleza":"<-03>3",
+  "America/Glace_Bay":"AST4ADT,M3.2.0,M11.1.0",
+  "America/Godthab":"<-02>2<-01>,M3.5.0/-1,M10.5.0/0",
+  "America/Goose_Bay":"AST4ADT,M3.2.0,M11.1.0",
+  "America/Grand_Turk":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Grenada":"AST4",
+  "America/Guadeloupe":"AST4",
+  "America/Guatemala":"CST6",
+  "America/Guayaquil":"<-05>5",
+  "America/Guyana":"<-04>4",
+  "America/Halifax":"AST4ADT,M3.2.0,M11.1.0",
+  "America/Havana":"CST5CDT,M3.2.0/0,M11.1.0/1",
+  "America/Hermosillo":"MST7",
+  "America/Indiana/Indianapolis":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Indiana/Knox":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Indiana/Marengo":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Indiana/Petersburg":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Indiana/Tell_City":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Indiana/Vevay":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Indiana/Vincennes":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Indiana/Winamac":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Inuvik":"MST7MDT,M3.2.0,M11.1.0",
+  "America/Iqaluit":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Jamaica":"EST5",
+  "America/Juneau":"AKST9AKDT,M3.2.0,M11.1.0",
+  "America/Kentucky/Louisville":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Kentucky/Monticello":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Kralendijk":"AST4",
+  "America/La_Paz":"<-04>4",
+  "America/Lima":"<-05>5",
+  "America/Los_Angeles":"PST8PDT,M3.2.0,M11.1.0",
+  "America/Lower_Princes":"AST4",
+  "America/Maceio":"<-03>3",
+  "America/Managua":"CST6",
+  "America/Manaus":"<-04>4",
+  "America/Marigot":"AST4",
+  "America/Martinique":"AST4",
+  "America/Matamoros":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Mazatlan":"MST7",
+  "America/Menominee":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Merida":"CST6",
+  "America/Metlakatla":"AKST9AKDT,M3.2.0,M11.1.0",
+  "America/Mexico_City":"CST6",
+  "America/Miquelon":"<-03>3<-02>,M3.2.0,M11.1.0",
+  "America/Moncton":"AST4ADT,M3.2.0,M11.1.0",
+  "America/Monterrey":"CST6",
+  "America/Montevideo":"<-03>3",
+  "America/Montreal":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Montserrat":"AST4",
+  "America/Nassau":"EST5EDT,M3.2.0,M11.1.0",
+  "America/New_York":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Nipigon":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Nome":"AKST9AKDT,M3.2.0,M11.1.0",
+  "America/Noronha":"<-02>2",
+  "America/North_Dakota/Beulah":"CST6CDT,M3.2.0,M11.1.0",
+  "America/North_Dakota/Center":"CST6CDT,M3.2.0,M11.1.0",
+  "America/North_Dakota/New_Salem":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Nuuk":"<-02>2<-01>,M3.5.0/-1,M10.5.0/0",
+  "America/Ojinaga":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Panama":"EST5",
+  "America/Pangnirtung":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Paramaribo":"<-03>3",
+  "America/Phoenix":"MST7",
+  "America/Port-au-Prince":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Port_of_Spain":"AST4",
+  "America/Porto_Velho":"<-04>4",
+  "America/Puerto_Rico":"AST4",
+  "America/Punta_Arenas":"<-03>3",
+  "America/Rainy_River":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Rankin_Inlet":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Recife":"<-03>3",
+  "America/Regina":"CST6",
+  "America/Resolute":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Rio_Branco":"<-05>5",
+  "America/Santarem":"<-03>3",
+  "America/Santiago":"<-04>4<-03>,M9.1.6/24,M4.1.6/24",
+  "America/Santo_Domingo":"AST4",
+  "America/Sao_Paulo":"<-03>3",
+  "America/Scoresbysund":"<-02>2<-01>,M3.5.0/-1,M10.5.0/0",
+  "America/Sitka":"AKST9AKDT,M3.2.0,M11.1.0",
+  "America/St_Barthelemy":"AST4",
+  "America/St_Johns":"NST3:30NDT,M3.2.0,M11.1.0",
+  "America/St_Kitts":"AST4",
+  "America/St_Lucia":"AST4",
+  "America/St_Thomas":"AST4",
+  "America/St_Vincent":"AST4",
+  "America/Swift_Current":"CST6",
+  "America/Tegucigalpa":"CST6",
+  "America/Thule":"AST4ADT,M3.2.0,M11.1.0",
+  "America/Thunder_Bay":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Tijuana":"PST8PDT,M3.2.0,M11.1.0",
+  "America/Toronto":"EST5EDT,M3.2.0,M11.1.0",
+  "America/Tortola":"AST4",
+  "America/Vancouver":"PST8PDT,M3.2.0,M11.1.0",
+  "America/Whitehorse":"MST7",
+  "America/Winnipeg":"CST6CDT,M3.2.0,M11.1.0",
+  "America/Yakutat":"AKST9AKDT,M3.2.0,M11.1.0",
+  "America/Yellowknife":"MST7MDT,M3.2.0,M11.1.0",
+  "Antarctica/Casey":"<+08>-8",
+  "Antarctica/Davis":"<+07>-7",
+  "Antarctica/DumontDUrville":"<+10>-10",
+  "Antarctica/Macquarie":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+  "Antarctica/Mawson":"<+05>-5",
+  "Antarctica/McMurdo":"NZST-12NZDT,M9.5.0,M4.1.0/3",
+  "Antarctica/Palmer":"<-03>3",
+  "Antarctica/Rothera":"<-03>3",
+  "Antarctica/Syowa":"<+03>-3",
+  "Antarctica/Troll":"<+00>0<+02>-2,M3.5.0/1,M10.5.0/3",
+  "Antarctica/Vostok":"<+05>-5",
+  "Arctic/Longyearbyen":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Asia/Aden":"<+03>-3",
+  "Asia/Almaty":"<+05>-5",
+  "Asia/Amman":"<+03>-3",
+  "Asia/Anadyr":"<+12>-12",
+  "Asia/Aqtau":"<+05>-5",
+  "Asia/Aqtobe":"<+05>-5",
+  "Asia/Ashgabat":"<+05>-5",
+  "Asia/Atyrau":"<+05>-5",
+  "Asia/Baghdad":"<+03>-3",
+  "Asia/Bahrain":"<+03>-3",
+  "Asia/Baku":"<+04>-4",
+  "Asia/Bangkok":"<+07>-7",
+  "Asia/Barnaul":"<+07>-7",
+  "Asia/Beirut":"EET-2EEST,M3.5.0/0,M10.5.0/0",
+  "Asia/Bishkek":"<+06>-6",
+  "Asia/Brunei":"<+08>-8",
+  "Asia/Chita":"<+09>-9",
+  "Asia/Choibalsan":"<+08>-8",
+  "Asia/Colombo":"<+0530>-5:30",
+  "Asia/Damascus":"<+03>-3",
+  "Asia/Dhaka":"<+06>-6",
+  "Asia/Dili":"<+09>-9",
+  "Asia/Dubai":"<+04>-4",
+  "Asia/Dushanbe":"<+05>-5",
+  "Asia/Famagusta":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Asia/Gaza":"EET-2EEST,M3.4.4/50,M10.4.4/50",
+  "Asia/Hebron":"EET-2EEST,M3.4.4/50,M10.4.4/50",
+  "Asia/Ho_Chi_Minh":"<+07>-7",
+  "Asia/Hong_Kong":"HKT-8",
+  "Asia/Hovd":"<+07>-7",
+  "Asia/Irkutsk":"<+08>-8",
+  "Asia/Jakarta":"WIB-7",
+  "Asia/Jayapura":"WIT-9",
+  "Asia/Jerusalem":"IST-2IDT,M3.4.4/26,M10.5.0",
+  "Asia/Kabul":"<+0430>-4:30",
+  "Asia/Kamchatka":"<+12>-12",
+  "Asia/Karachi":"PKT-5",
+  "Asia/Kathmandu":"<+0545>-5:45",
+  "Asia/Khandyga":"<+09>-9",
+  "Asia/Kolkata":"IST-5:30",
+  "Asia/Krasnoyarsk":"<+07>-7",
+  "Asia/Kuala_Lumpur":"<+08>-8",
+  "Asia/Kuching":"<+08>-8",
+  "Asia/Kuwait":"<+03>-3",
+  "Asia/Macau":"CST-8",
+  "Asia/Magadan":"<+11>-11",
+  "Asia/Makassar":"WITA-8",
+  "Asia/Manila":"PST-8",
+  "Asia/Muscat":"<+04>-4",
+  "Asia/Nicosia":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Asia/Novokuznetsk":"<+07>-7",
+  "Asia/Novosibirsk":"<+07>-7",
+  "Asia/Omsk":"<+06>-6",
+  "Asia/Oral":"<+05>-5",
+  "Asia/Phnom_Penh":"<+07>-7",
+  "Asia/Pontianak":"WIB-7",
+  "Asia/Pyongyang":"KST-9",
+  "Asia/Qatar":"<+03>-3",
+  "Asia/Qyzylorda":"<+05>-5",
+  "Asia/Riyadh":"<+03>-3",
+  "Asia/Sakhalin":"<+11>-11",
+  "Asia/Samarkand":"<+05>-5",
+  "Asia/Seoul":"KST-9",
+  "Asia/Shanghai":"CST-8",
+  "Asia/Singapore":"<+08>-8",
+  "Asia/Srednekolymsk":"<+11>-11",
+  "Asia/Taipei":"CST-8",
+  "Asia/Tashkent":"<+05>-5",
+  "Asia/Tbilisi":"<+04>-4",
+  "Asia/Tehran":"<+0330>-3:30",
+  "Asia/Thimphu":"<+06>-6",
+  "Asia/Tokyo":"JST-9",
+  "Asia/Tomsk":"<+07>-7",
+  "Asia/Ulaanbaatar":"<+08>-8",
+  "Asia/Urumqi":"<+06>-6",
+  "Asia/Ust-Nera":"<+10>-10",
+  "Asia/Vientiane":"<+07>-7",
+  "Asia/Vladivostok":"<+10>-10",
+  "Asia/Yakutsk":"<+09>-9",
+  "Asia/Yangon":"<+0630>-6:30",
+  "Asia/Yekaterinburg":"<+05>-5",
+  "Asia/Yerevan":"<+04>-4",
+  "Atlantic/Azores":"<-01>1<+00>,M3.5.0/0,M10.5.0/1",
+  "Atlantic/Bermuda":"AST4ADT,M3.2.0,M11.1.0",
+  "Atlantic/Canary":"WET0WEST,M3.5.0/1,M10.5.0",
+  "Atlantic/Cape_Verde":"<-01>1",
+  "Atlantic/Faroe":"WET0WEST,M3.5.0/1,M10.5.0",
+  "Atlantic/Madeira":"WET0WEST,M3.5.0/1,M10.5.0",
+  "Atlantic/Reykjavik":"GMT0",
+  "Atlantic/South_Georgia":"<-02>2",
+  "Atlantic/St_Helena":"GMT0",
+  "Atlantic/Stanley":"<-03>3",
+  "Australia/Adelaide":"ACST-9:30ACDT,M10.1.0,M4.1.0/3",
+  "Australia/Brisbane":"AEST-10",
+  "Australia/Broken_Hill":"ACST-9:30ACDT,M10.1.0,M4.1.0/3",
+  "Australia/Currie":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+  "Australia/Darwin":"ACST-9:30",
+  "Australia/Eucla":"<+0845>-8:45",
+  "Australia/Hobart":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+  "Australia/Lindeman":"AEST-10",
+  "Australia/Lord_Howe":"<+1030>-10:30<+11>-11,M10.1.0,M4.1.0",
+  "Australia/Melbourne":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+  "Australia/Perth":"AWST-8",
+  "Australia/Sydney":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+  "Europe/Amsterdam":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Andorra":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Astrakhan":"<+04>-4",
+  "Europe/Athens":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Belgrade":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Berlin":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Bratislava":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Brussels":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Bucharest":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Budapest":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Busingen":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Chisinau":"EET-2EEST,M3.5.0,M10.5.0/3",
+  "Europe/Copenhagen":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Dublin":"IST-1GMT0,M10.5.0,M3.5.0/1",
+  "Europe/Gibraltar":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Guernsey":"GMT0BST,M3.5.0/1,M10.5.0",
+  "Europe/Helsinki":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Isle_of_Man":"GMT0BST,M3.5.0/1,M10.5.0",
+  "Europe/Istanbul":"<+03>-3",
+  "Europe/Jersey":"GMT0BST,M3.5.0/1,M10.5.0",
+  "Europe/Kaliningrad":"EET-2",
+  "Europe/Kiev":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Kirov":"MSK-3",
+  "Europe/Lisbon":"WET0WEST,M3.5.0/1,M10.5.0",
+  "Europe/Ljubljana":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/London":"GMT0BST,M3.5.0/1,M10.5.0",
+  "Europe/Luxembourg":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Madrid":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Malta":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Mariehamn":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Minsk":"<+03>-3",
+  "Europe/Monaco":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Moscow":"MSK-3",
+  "Europe/Oslo":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Paris":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Podgorica":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Prague":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Riga":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Rome":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Samara":"<+04>-4",
+  "Europe/San_Marino":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Sarajevo":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Saratov":"<+04>-4",
+  "Europe/Simferopol":"MSK-3",
+  "Europe/Skopje":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Sofia":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Stockholm":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Tallinn":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Tirane":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Ulyanovsk":"<+04>-4",
+  "Europe/Uzhgorod":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Vaduz":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Vatican":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Vienna":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Vilnius":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Volgograd":"MSK-3",
+  "Europe/Warsaw":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Zagreb":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Europe/Zaporozhye":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+  "Europe/Zurich":"CET-1CEST,M3.5.0,M10.5.0/3",
+  "Indian/Antananarivo":"EAT-3",
+  "Indian/Chagos":"<+06>-6",
+  "Indian/Christmas":"<+07>-7",
+  "Indian/Cocos":"<+0630>-6:30",
+  "Indian/Comoro":"EAT-3",
+  "Indian/Kerguelen":"<+05>-5",
+  "Indian/Mahe":"<+04>-4",
+  "Indian/Maldives":"<+05>-5",
+  "Indian/Mauritius":"<+04>-4",
+  "Indian/Mayotte":"EAT-3",
+  "Indian/Reunion":"<+04>-4",
+  "Pacific/Apia":"<+13>-13",
+  "Pacific/Auckland":"NZST-12NZDT,M9.5.0,M4.1.0/3",
+  "Pacific/Bougainville":"<+11>-11",
+  "Pacific/Chatham":"<+1245>-12:45<+1345>,M9.5.0/2:45,M4.1.0/3:45",
+  "Pacific/Chuuk":"<+10>-10",
+  "Pacific/Easter":"<-06>6<-05>,M9.1.6/22,M4.1.6/22",
+  "Pacific/Efate":"<+11>-11",
+  "Pacific/Enderbury":"<+13>-13",
+  "Pacific/Fakaofo":"<+13>-13",
+  "Pacific/Fiji":"<+12>-12",
+  "Pacific/Funafuti":"<+12>-12",
+  "Pacific/Galapagos":"<-06>6",
+  "Pacific/Gambier":"<-09>9",
+  "Pacific/Guadalcanal":"<+11>-11",
+  "Pacific/Guam":"ChST-10",
+  "Pacific/Honolulu":"HST10",
+  "Pacific/Kiritimati":"<+14>-14",
+  "Pacific/Kosrae":"<+11>-11",
+  "Pacific/Kwajalein":"<+12>-12",
+  "Pacific/Majuro":"<+12>-12",
+  "Pacific/Marquesas":"<-0930>9:30",
+  "Pacific/Midway":"SST11",
+  "Pacific/Nauru":"<+12>-12",
+  "Pacific/Niue":"<-11>11",
+  "Pacific/Norfolk":"<+11>-11<+12>,M10.1.0,M4.1.0/3",
+  "Pacific/Noumea":"<+11>-11",
+  "Pacific/Pago_Pago":"SST11",
+  "Pacific/Palau":"<+09>-9",
+  "Pacific/Pitcairn":"<-08>8",
+  "Pacific/Pohnpei":"<+11>-11",
+  "Pacific/Port_Moresby":"<+10>-10",
+  "Pacific/Rarotonga":"<-10>10",
+  "Pacific/Saipan":"ChST-10",
+  "Pacific/Tahiti":"<-10>10",
+  "Pacific/Tarawa":"<+12>-12",
+  "Pacific/Tongatapu":"<+13>-13",
+  "Pacific/Wake":"<+12>-12",
+  "Pacific/Wallis":"<+12>-12",
+
+  "Etc/UTC":"UTC0",
+  "Etc/GMT":"GMT0",
+  "Etc/GMT+1":"<-01>1",
+  "Etc/GMT+2":"<-02>2",
+  "Etc/GMT+3":"<-03>3",
+  "Etc/GMT+4":"<-04>4",
+  "Etc/GMT+5":"<-05>5",
+  "Etc/GMT+6":"<-06>6",
+  "Etc/GMT+7":"<-07>7",
+  "Etc/GMT+8":"<-08>8",
+  "Etc/GMT+9":"<-09>9",
+  "Etc/GMT+10":"<-10>10",
+  "Etc/GMT+11":"<-11>11",
+  "Etc/GMT+12":"<-12>12",
+  "Etc/GMT-1":"<+01>-1",
+  "Etc/GMT-2":"<+02>-2",
+  "Etc/GMT-3":"<+03>-3",
+  "Etc/GMT-4":"<+04>-4",
+  "Etc/GMT-5":"<+05>-5",
+  "Etc/GMT-6":"<+06>-6",
+  "Etc/GMT-7":"<+07>-7",
+  "Etc/GMT-8":"<+08>-8",
+  "Etc/GMT-9":"<+09>-9",
+  "Etc/GMT-10":"<+10>-10",
+  "Etc/GMT-11":"<+11>-11",
+  "Etc/GMT-12":"<+12>-12",
+  "Etc/GMT-13":"<+13>-13",
+  "Etc/GMT-14":"<+14>-14",
+  "Etc/Zulu":"UTC0"
+}