🌐 Timezone Database & Code Generator

Select any country or timezone — get ready-to-paste code snippets for Arduino, ESP32, Raspberry Pi, Python, Node.js, PHP, Java, Swift, Flutter, Windows, Linux and macOS.

Electronics

400+ Timezones

14 Platforms

Timezones: 400+

Countries: 195

UTC Offsets: 38

Platforms: 14

Selected: —

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Region

Timezone

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Timezone Format Guide

IANA / Olson format (e.g. Asia/Kolkata)
Used by: Linux, macOS, Python, PHP, Java, Node.js, Arduino NTP libraries

POSIX TZ string (e.g. IST-5:30)
Used by: ESP32/ESP8266 configTime(), C/C++ setenv("TZ")

UTC offset (e.g. +05:30)
Used by: Arduino NTP (seconds offset), JSON timestamps, APIs

Windows timezone name (e.g. India Standard Time)
Used by: Windows tzutil, .NET, PowerShell

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Select a timezone

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IANA Name

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UTC Offset

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POSIX TZ String

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Offset (seconds)

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DST Active

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Windows TZ Name

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Abbreviation

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Linux/macOS zoneinfo

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Code Snippets — Select Platform

← Select a timezone to generate code snippets

Popular Timezones Quick Reference

Country / City	IANA Name	UTC Offset	POSIX String	Abbr

Timezone data based on IANA Time Zone Database. POSIX strings and offsets are indicative — always verify DST rules for your region before deployment.