Time Zone Converter
Pick a date, time and time zone to see the matching local time in cities around the world, including your own.
| Place | Time | Date | Offset | Remove |
|---|---|---|---|---|
| Los Angeles | 06:00 | Tue, Nov 10 | UTC−08:00 | |
| London | 14:00 | Tue, Nov 10 | UTC+00:00 | |
| Karachi | 19:00 | Tue, Nov 10 | UTC+05:00 | |
| India (Kolkata) | 19:30 | Tue, Nov 10 | UTC+05:30 | |
| Tokyo | 23:00 | Tue, Nov 10 | UTC+09:00 | |
| Sydney | 01:00 | Wed, Nov 11 | UTC+11:00 | |
| Your time zone | — | — | — |
🔒 Runs entirely in your browser. Nothing you enter is sent to a server.
Scheduling a call between New York, London and Karachi means juggling three clocks and two sets of daylight saving rules. This time zone converter does it for you: choose a date, time and starting time zone, and see what time it is in every other city on your list.
How to use the time zone converter
- Set the date and time you want to convert.
- Choose the time zone that time is in.
- Read the matching times in the table. The date column shows when a city is already on the next day or still on the previous one.
- Use Add a city to add more places, or × to remove one. Your time zone is detected from your device and always listed.
- Click Use current time to see what time it is right now everywhere.
How the conversion works
Every place has an offset from Coordinated Universal Time (UTC), and that offset can change during the year because of daylight saving time (DST). The converter:
- Works out the offset of the starting time zone on the chosen date.
- Converts your local time to UTC:
UTC = local time − offset. - For each city, looks up its offset at that moment and adds it:
city time = UTC + city offset.
The offsets come from the IANA time zone database built into your browser, which records every country’s DST rules, including historical changes.
Worked example
You want to hold a meeting at 9:00 on Tuesday 10 November 2026 in New York.
- New York is on Eastern Standard Time, UTC−05:00, so the meeting is at 14:00 UTC.
- Los Angeles (UTC−08:00): 06:00 the same day
- London (UTC+00:00): 14:00
- Karachi (UTC+05:00): 19:00
- India (UTC+05:30): 19:30
- Tokyo (UTC+09:00): 23:00
- Sydney (UTC+11:00, summer time): 01:00 on Wednesday 11 November
Try the same meeting two weeks earlier, on 28 October. New York is still on daylight time (UTC−04:00) but London has already switched back to UTC+00:00, so 9:00 in New York is 13:00 in London, not 14:00.
Daylight saving dates differ
| Region | DST starts | DST ends |
|---|---|---|
| United States and Canada | 2nd Sunday of March | 1st Sunday of November |
| European Union and UK | Last Sunday of March | Last Sunday of October |
| Australia (south-east) | 1st Sunday of October | 1st Sunday of April |
| Pakistan, India, Japan, China | No DST | No DST |
Because the US and Europe change on different weekends, their time difference shrinks by an hour for a few weeks each year. Southern hemisphere countries change in the opposite direction.
Tips for scheduling across time zones
- Always name the zone. “3 pm ET” or “15:00 UTC” avoids confusion. “3 pm” on its own is ambiguous.
- Watch the date line. A Monday afternoon call in California is Tuesday morning in Australia and Japan.
- Avoid times near a clock change. On the night clocks go forward, a time such as 02:30 doesn’t exist, and the converter will warn you.
- Use UTC for logs and servers. It never changes with the seasons, which makes records easy to compare.
- Rotate inconvenient slots. For regular meetings across many regions, share the early and late times fairly.
Frequently asked questions
Does the converter handle daylight saving time?
Yes. It uses your browser's built-in time zone database, which knows the daylight saving rules for each place and date. That is why the result depends on the date you choose as well as the time.
Why does the time difference change during the year?
Countries start and end daylight saving time on different dates, and many never use it. New York and London are usually 5 hours apart, but for a few weeks each spring and autumn they are only 4 hours apart because their clocks change on different weekends.
What is the difference between GMT and UTC?
For everyday purposes they show the same time. UTC is the precise scientific standard, and GMT is the time zone used in the UK in winter. In summer the UK switches to BST, which is UTC+1.
Why do some places have 30- or 45-minute offsets?
Some countries set their clocks to a half or quarter hour to better match the sun. India uses UTC+5:30 and Nepal uses UTC+5:45, for example.
Can I add more cities?
Yes. Use the "Add a city" menu to add as many as you need, and the × button to remove them. Your own time zone is always shown at the bottom.