Time Zone Converter
Compare multiple time zones with visual timelines, detailed information, and real-time updates
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Search and add time zones above to start comparing times across different regions
World Time Zone Converter
Use the tool above to convert a specific time between up to 5 timezones at once — pick a source time, and every zone you've added updates to match. It handles daylight saving time automatically: the result depends on the date you select, not just a fixed hour offset, so a conversion in July and the same conversion in January can land on different UTC offsets for zones that observe DST.
How to Use It
- Search for a timezone — type a city, country, or regional abbreviation (EST, PST, GMT, IST, etc.)
- Add more zones to compare — up to 5 at once, side by side
- Set the date and time — type a time in the time box (it uses the first zone you added) or drag any timeline. The date picker lets you convert for any day, not just today.
- Switch format — toggle between 12-hour and 24-hour display
Timezone Abbreviations Reference
A quick reference for common abbreviations — note that most of these represent a region that switches between a standard and a daylight-saving offset, not a single fixed UTC offset year-round:
Frequently Asked Questions
How does daylight saving time affect the result?
The converter uses the IANA timezone database, so it applies whichever offset (standard or daylight) is actually in effect on the date you pick — not a fixed year-round offset. New York itself shifts by an hour between January (EST, UTC-5) and July (EDT, UTC-4), but since London also shifts (GMT to BST) in the same direction, the same 9:00 AM New York time converts to the same London clock time in both months — the New York-London gap only moves during the few weeks each spring and autumn when the US and UK change clocks on different dates.
Can I convert times for a future or past date?
Yes — the date field accepts any date, not just today. This is useful for confirming exact meeting times weeks or months out, when DST status might differ from today's. Historical conversions use the timezone data in your browser's IANA database, which includes past rule changes. Coverage is strongest from 1970 onward, and very old dates can vary by browser and database version.
Why do some zones show one offset and others show two (like EST/EDT)?
Zones with two abbreviations observe daylight saving time and switch between them depending on the date. Zones with only one abbreviation, like IST (India) or JST (Japan), don't observe DST and stay on the same offset year-round.
Need live current times instead of a specific-time conversion? See World Clock vs Time Zone Converter to find out which tool fits your task, or jump straight to the world clock.