How the time zone converter works
Pick a date and time in the From zone and the converter shows the same moment in the To zone. It uses your browser's built-in time zone database (the IANA tz database used by every major operating system), so daylight saving time rules, including the different start dates in the US, Europe and the Southern Hemisphere, are applied automatically for the exact date you choose.
That's why the date matters. New York and London are usually 5 hours apart, but for a few weeks each spring and autumn they're 4 hours apart because the US and UK change their clocks on different dates.
Example: 9:00 AM in New York on November 12, 2026 is 2:00 PM in London and 11:00 PM in Tokyo.
Scheduling across time zones
- When sending a meeting time, include the zone abbreviation or city, for example "3 PM ET / 8 PM UK".
- Arizona (except the Navajo Nation) and Hawaii don't observe daylight saving time.
- India, parts of Australia and Newfoundland use half-hour offsets, and Nepal uses a 45-minute offset. The converter handles these too.
Next steps
Planning a weekly schedule for viewers everywhere? The stream schedule maker converts every slot at once.
Frequently asked questions
Does this account for daylight saving time?
Yes. Offsets are calculated for the specific date you enter, so DST changes in either location are always reflected.
What is UTC?
Coordinated Universal Time is the global reference time that all time zones are defined from. It's the same as GMT for everyday purposes and never changes for daylight saving.
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