Time Zone Converter
Convert a time across time zones with automatic DST handling.
| Zone | Time | Date | Offset |
|---|
Conversions use the IANA time zone database built into your browser, so the offset shown is the one actually in force on that date — daylight saving included.
About Time Zone Converter
Scheduling across zones is where meetings go to die, and the traps are the ones you cannot see: daylight saving starts on different dates in different hemispheres, and some zones sit on a half-hour offset.
This converter reads the real time zone database built into your browser, so the offset it applies is the one that will actually be in force on that date.
How Time Zone Converter works in your browser
Conversions use the IANA time zone database built into your browser through Intl.DateTimeFormat, so the offset applied is the one actually in force on the date you choose — including daylight saving transitions and half-hour offsets.
That is why converting the same meeting time in March and in July can give different answers: many zones change offset seasonally, and different hemispheres change on different dates.
When to use it
- Scheduling a meeting across offices in several countries.
- Checking what time a live event starts in your own zone.
- Confirming a call time around a daylight saving change.
Frequently asked questions
How do I convert IST to EST?
Pick the two zones and a date. IST is UTC+5:30 year round, while the US Eastern zone shifts between EST and EDT, so the difference changes with the date. The converter applies the correct offset for the day you choose.
Is daylight saving handled?
Yes. Conversion uses the browser IANA time zone database, so the correct offset for that specific date is applied.
Why does the offset change with the date?
Because many zones shift by an hour seasonally. Converting a meeting in March can give a different result than the same meeting in July.
Which zones are available?
Every IANA zone your browser supports, searchable by city name.