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Time Zone Converter
Convert a time between any time zones, with daylight saving handled, and plan meetings across cities with a 24-hour working-hours grid.
Find out what time it is anywhere, or what a meeting time in one city means everywhere else. Pick a date and time in one time zone and the Time Zone Converter shows it in every zone you add, with the date, the UTC offset, the abbreviation and a marker when the date is a day ahead or behind. Add cities by name, by country, by zone name such as Europe/Paris, or by abbreviation such as IST, EST or PST.
Daylight saving time is handled for every date, using the time-zone database built into your browser, so a call planned for next spring shows the right times even if the clocks change in between. The meeting planner lays out all 24 hours of the day across your cities and highlights working hours, and you can share the whole setup with a link.
How to use Time Zone Converter
- Pick the date and time, and the time zone it is in (your own zone is selected).
- Add the cities or time zones you need: type a city, a country or an abbreviation like IST and press Add.
- Read the converted times; +1 day or −1 day shows when the date changes.
- Use the meeting planner to find an hour that falls in working hours everywhere, then copy the link.
Features
- Convert one time to up to 20 time zones at once.
- Search by city, country, zone name, abbreviation or UTC offset (UTC+3).
- Daylight saving handled for any date, past or future.
- UTC offset, abbreviation and the difference in hours for every zone.
- Next-day and previous-day markers.
- 24-hour meeting planner with working hours highlighted.
- Make any zone the source with one click; 12- or 24-hour clock.
- Shareable link with your time and cities; updates live when showing the current time.
Common conversions
Offsets change with daylight saving time, so the difference between two places can depend on the date. India does not use daylight saving, but the United States, Canada, the UK and most of Europe do. These examples are for a 9:00 meeting.
| From | To | In January | In July |
|---|---|---|---|
| 9:00 New York (EST / EDT) | India (IST) | 19:30 | 18:30 |
| 9:00 London (GMT / BST) | India (IST) | 14:30 | 13:30 |
| 9:00 San Francisco (PST / PDT) | India (IST) | 22:30 | 21:30 |
| 9:00 India (IST) | New York | 22:30 the day before | 23:30 the day before |
| 9:00 Berlin (CET / CEST) | New York | 3:00 | 3:00 |
| 9:00 Sydney (AEDT / AEST) | London | 22:00 the day before | 0:00 |
Daylight saving time
In 2026, clocks in the United States and Canada go forward on 8 March and back on 1 November, while the UK and the EU change on 29 March and 25 October. For a few weeks in spring and autumn the gap between New York and London is therefore four hours instead of five. Australia and New Zealand change in the opposite season. On the night clocks go forward, an hour such as 2:30 does not exist; the converter tells you and shows the moment just after the change. When clocks go back, one hour happens twice and the converter uses the first one.
Time zone abbreviations
Abbreviations are handy but ambiguous: IST is India Standard Time here, but it also stands for Irish and Israel Standard Time, and CST can mean US Central or China Standard Time. That is why the converter shows the full zone name, such as Asia/Kolkata or America/Chicago, next to each city. India is UTC+5:30 all year, Nepal is UTC+5:45, US Eastern is UTC−5 in winter and UTC−4 in summer, and Central European Time is UTC+1 in winter and UTC+2 in summer. Typing UTC+3 or GMT-5 adds a fixed-offset zone without daylight saving.
Planning meetings across time zones
The planner shows each hour of the chosen day in the first zone as a column, and the matching local hour for every other city below it. Green cells are 9:00 to 17:00, amber cells are early mornings and evenings, and grey cells are night. Look for a column that is green or amber for everyone; click it to set that time. When no hour suits all locations, for example between California and India, rotate inconvenient slots between teams or record the meeting.
UTC and GMT
Coordinated Universal Time (UTC) is the world's reference time; every zone is defined as an offset from it. GMT is the time zone of London in winter and is, in everyday use, the same as UTC. Servers, logs, APIs and aviation use UTC because it never changes for daylight saving. The Unix Timestamp Converter turns timestamps from logs into dates in any zone.
Frequently asked questions
What time is 9 AM EST in IST?
7:30 PM IST when New York is on standard time (EST, roughly November to March), and 6:30 PM IST in summer, when New York is on daylight time (EDT).
Does the converter handle daylight saving time?
Yes. It uses your browser's time-zone database, so every date uses the offsets in force on that day in each zone.
How do I add a city that isn't listed?
Type a nearby big city in the same time zone, the zone name (such as America/Edmonton), or a fixed offset like UTC+4.
What does +1 day mean?
The converted time falls on the next calendar day compared with the date you picked, for example a New York evening is the next morning in Tokyo.
How do I share the times with my team?
Click Copy link. The link contains the date, time and cities, and opens the same view for anyone.
What is the difference between IST and GMT?
India Standard Time is 5 hours 30 minutes ahead of GMT all year. When the UK is on summer time (BST), India is 4 hours 30 minutes ahead of London.
Is anything sent to a server?
No. All conversions happen in your browser using its built-in time-zone data.
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