Converted times
| City | Local time | Date | Difference | UTC offset |
|---|
How the conversion works
The converter takes the time you typed, reads it in the starting city's time zone, turns it into Coordinated Universal Time (UTC, the clock the whole world measures against), and then shows that one moment in each destination city. It uses the time zone database built into your browser, so daylight saving switches and old rule changes are handled for you. Every conversion is two steps: local time to UTC, then UTC to local time somewhere else.
Worked example
Say a webinar is set for 2:00 PM in New York on a Tuesday in June. New York in June is on Eastern Daylight Time, UTC−4, so 2:00 PM there is 18:00 UTC. London in June is UTC+1, so that's 7:00 PM in London. Tokyo never changes its clocks and sits at UTC+9, so it's 3:00 AM on Wednesday in Tokyo. Notice the day changed. That's the detail that burns people. When a meeting crosses the Pacific, check the date column, not just the time.
The traps worth knowing
Countries switch to summer time on different dates, so the gap between two cities can shift for a few weeks. New York and London are five hours apart most of the year and four hours apart for about two weeks each spring. A weekly call "at 3 PM New York time" quietly moves for the Londoners during that window. Some zones aren't whole hours at all. India is UTC+5:30, Nepal is UTC+5:45, and Iran, parts of Australia and Newfoundland sit on half hours too. Don't guess those; convert them. And when someone says "12 PM," make sure they mean noon and not midnight. For anything international, share the time in UTC or send a converter link so nobody has to guess.
Frequently asked questions
Why did the offset change from what I remembered?
Daylight saving. A city's UTC offset moves by an hour twice a year if it observes DST — the converter always applies the rule in force on the specific date you chose, which is why picking the right date matters as much as the right time.
Can I convert a time in the past or future?
Yes — pick any date. The browser's time zone database includes historical and scheduled rule changes, so a conversion for last December or next July uses the offsets actually in force then.
What's the difference between GMT and UTC?
For everyday purposes, none — they describe the same reference time. UTC is the precise modern standard kept by atomic clocks; GMT is the older name that lives on in British usage and in zone labels like "GMT+8."
Starting from a UTC time instead of a city? The UTC converter is built for that. Comparing many cities at once for a meeting? The meeting planner shows working hours side by side. For the story behind the zones themselves, read time zones explained and daylight saving time.