CyberCodeTime Zone Converter
Free online time zone converter. Convert any date and time between world time zones (with automatic DST handling) — ideal for scheduling international meetings.
Why is time zone conversion harder than adding hours?
Because offsets change. Daylight saving time shifts a zone's offset twice a year on dates that differ by country and year; some offsets are not whole hours (India UTC+5:30, Nepal UTC+5:45); and rules themselves change through legislation. Correct conversion needs the IANA time zone database, not arithmetic.
This converter uses your browser's built-in IANA database via the Intl API, so DST and historical rule changes are applied automatically for all 400+ zones — the same data your operating system uses.
How to use
- 01Pick the date and time you want to convert.
- 02Select the source time zone (the zone the time is in).
- 03Select the destination time zone.
- 04Click Convert time — results include UTC for reference.
Frequently asked questions
- Does the converter handle daylight saving time?
- Yes. It uses your browser's IANA time zone database, which applies the correct DST rules for each zone on the chosen date automatically.
- Why do some zones differ by 30 or 45 minutes?
- Not all offsets are whole hours — India is UTC+5:30, and Nepal is UTC+5:45. The converter handles these correctly since it works from the official zone database.
- Which time zones are available?
- All IANA time zones supported by your browser — typically 400+ zones covering every country and region.