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Source time
Convert a time from one timezone to another in a single click.
This timezone converter takes a date and time in one timezone and instantly shows what that same moment is in another timezone anywhere in the world. It's built for the everyday problem of scheduling across regions: figuring out what 3pm in New York actually is in Mumbai, London, or Tokyo, without doing the mental math yourself or getting caught out by daylight saving shifts.
Rather than applying a fixed offset per timezone (which would be wrong for roughly half the year in regions that observe daylight saving), this tool uses your browser's built-in timezone database to work out the correct offset for the exact date you entered. That means a conversion done in January and the same conversion done in July will correctly reflect whichever offset was actually in effect on each date, including the handful of regions that don't observe daylight saving at all.
The tricky part of timezone conversion isn't the arithmetic, it's that offsets aren't fixed: they change with daylight saving, they aren't always whole hours (India and a few other countries sit at a half-hour or 45-minute offset), and the same city can be a different number of hours away from you depending on the time of year. This tool sidesteps all of that by working entirely from real timezone rules rather than a static offset table.
Remote teams coordinating a call across continents, travelers trying to figure out what time it is back home, event organizers publishing a start time for an international audience, and anyone scheduling a call with family or colleagues abroad all run into the same basic problem this tool solves directly.
Yes. The conversion is calculated using each timezone's real historical and current rules for the specific date you enter, so daylight saving transitions are handled correctly without any manual adjustment.
Some regions, including India and parts of Australia, use a half-hour or 45-minute offset from UTC rather than a whole hour, so the calculated difference between two zones can come out as a fraction.
Yes, you can pick any date and time, and the tool will apply whichever timezone rules (including daylight saving) were or will be in effect on that specific date.
A curated list of major world timezones covering most populated regions and common business hubs is available in both dropdowns.
No, converting from Zone A to Zone B and then immediately converting the result back from Zone B to Zone A will return your original time exactly, since the underlying moment in time never changes, only its local representation does.