TimeZoneSyncBot

@TimeZoneSyncBot is a Telegram bot for syncing time between time zones in a Telegram chat.

Time zones use TZ identifiers from the tz database.

Add the bot to a chat and grant "Send Messages" permission.

Installation

1. Deploy to Fly.io.
2. Add APP_NAME secret.
3. Add BOT_TOKEN secret.
4. Add optional BOT_MAX_CONCURRENCY secret (default value is 1000).
5. Add optional PORT secret (default value is 4000).
6. Add DATABASE_URL secret (default value is localhost/time_zone_sync_bot for development and tests).

Features

• Add time zone.
• Update time zone.
• Remove time zone.
• Remove all time zones.
• Show date in time zones.
• Show time in time zones.
• Show datetime in time zones.
• Show datetime in time zones for specified time of another time zone.
• Show time zones.
• Show help message.

Commands

• /add_time_zone <label> <time_zone>: Add time zone with a label.
• /update_time_zone <label> <new_time_zone>: Update time zone with the label.
• /remove_time_zone <label>: Remove time zone with the label.
• /clear_time_zones: Remove all time zones.
• /date: Show date in time zones.
• /time: Show time in time zones.
• /datetime: Show datetime in time zones.
• /sync_datetime <label> <time>: Show datetime in time zones for specified time of another time zone.
• /time_zones: Show time zones.
• /help: Show help message.

Examples

/date

<b>Tbilisi</b>: 2023-04-09
<b>Haifa</b>: 2023-04-09
<b>Warsaw</b>: 2023-04-09
<b>London</b>: 2023-04-09
<b>San_Francisco</b>: 2023-04-09

/time

<b>Tbilisi</b>: 11:20 (+0400)
<b>Haifa</b>: 10:20 (+0300)
<b>Warsaw</b>: 09:20 (+0200)
<b>London</b>: 08:20 (+0100)
<b>San_Francisco</b>: 00:20 (-0700)

/datetime

<b>Tbilisi</b>: 2023-04-09 11:20 (+0400)
<b>Haifa</b>: 2023-04-09 10:20 (+0300)
<b>Warsaw</b>: 2023-04-09 09:20 (+0200)
<b>London</b>: 2023-04-09 08:20 (+0100)
<b>San_Francisco</b>: 2023-04-09 00:20 (-0700)

/timezones

<b>Tbilisi</b>: Asia/Tbilisi
<b>Haifa</b>: Asia/Jerusalem
<b>Warsaw</b>: Europe/Warsaw
<b>London</b>: Europe/London
<b>San_Francisco</b>: America/Los_Angeles