How to convert a time between time zones
- In From (city or time zone), type a city, a country, an abbreviation such as EST or IST, or a zone name such as Europe/Paris, and pick it from the list. It starts with your device's time zone.
- Set the Date and Time in that place, or press Now.
- Use Add a city or time zone for each place to compare. Every row shows the local time and date, a badge such as +1 day when it is already the next day, and the difference, for example "5 h 30 min ahead".
- Reorder rows with the arrows, remove one with ×, or use a row's convert-from button to make that place the source.
- Press Copy link to share the conversion: the link carries the date, time and places.
Abbreviations are ambiguous, so each maps to one labelled zone (IST means India, CST means US Central Time) and then follows that place's daylight saving rules: "EST" in July shows New York's summer time, EDT. For a fixed offset, pick UTC or GMT.
How time zones, UTC offsets and daylight saving work
Every local time is an offset from Coordinated Universal Time (UTC). Many countries move their clocks forward an hour in summer and back in autumn, on different dates, so the gap between two cities changes during the year. New York and London are normally 5 hours apart, but in 2026 only 4 hours from 8 to 29 March and from 25 October to 1 November, because the United States changes its clocks before the UK in spring and after it in autumn.
The converter has no fixed list of offsets. It asks your browser for each place's offset on the date you enter, from the IANA time zone database used by phones and computers, so a conversion for next July uses July's rules.
| Place | Standard time | Summer time | Clocks change in 2026 |
|---|---|---|---|
| Los Angeles (Pacific Time) | UTC−8 | UTC−7 | 8 March, 1 November |
| Phoenix (Arizona) | UTC−7 | none | no change |
| Chicago (Central Time) | UTC−6 | UTC−5 | 8 March, 1 November |
| New York, Toronto (Eastern Time) | UTC−5 | UTC−4 | 8 March, 1 November |
| São Paulo, Buenos Aires | UTC−3 | none | no change |
| London, Dublin, Lisbon | UTC+0 | UTC+1 | 29 March, 25 October |
| Paris, Berlin, Madrid, Rome | UTC+1 | UTC+2 | 29 March, 25 October |
| Athens, Helsinki, Kyiv | UTC+2 | UTC+3 | 29 March, 25 October |
| Moscow, Istanbul | UTC+3 | none | no change |
| Dubai | UTC+4 | none | no change |
| India (IST) | UTC+5:30 | none | no change |
| Beijing, Singapore, Perth | UTC+8 | none | no change |
| Tokyo, Seoul | UTC+9 | none | no change |
| Sydney, Melbourne | UTC+10 | UTC+11 | ends 5 April, starts 4 October |
| Auckland | UTC+12 | UTC+13 | ends 5 April, starts 27 September |
Times that don't exist or happen twice
When clocks spring forward, an hour is skipped: in New York on 8 March 2026 the clock jumps from 01:59 to 03:00, so 02:30 never happens. Enter such a time and the converter says so and shows 03:30, reading your time on the offset in force just before the change. When clocks go back, an hour repeats: on 1 November 2026 New York passes 01:00 to 01:59 twice. The converter takes the first one (summer time, UTC−4) and tells you. Calendar apps follow the same rules (RFC 5545).
Tips for planning a meeting across time zones
The Meeting planner lists the 24 hours of the chosen day in the source place, with each other place's local hour underneath. Hours fully within 09:00 to 17:00 are highlighted, night hours (22:00 to 07:00) are dimmed, and columns that are working hours everywhere are marked. Pick an hour in the first row to convert it.
- Write the zone in the invitation, such as "15:00 London (UTC+1)", or send the shared link.
- Watch the weeks around clock changes, when calls between Europe and North America shift by an hour.
- Check weekends and holidays. The planner knows clock time only, and weekends differ: in Saudi Arabia the weekend is Friday and Saturday.
To see the time right now in many cities, open the World Clock. Count days to a deadline with the date calculator, and time the meeting with the online timer or stopwatch.
Privacy
Conversions run in your browser with its built-in time zone data; nothing you type is sent to our server. Your places and the 12- or 24-hour setting are kept in this browser's local storage. The date, time and places are also written into the page address so you can bookmark or share it; opening such a link sends that address to our server, like any page request.
Frequently asked questions
How do I convert EST to IST?
India Standard Time (UTC+5:30) is 10 hours 30 minutes ahead of US Eastern Standard Time (UTC−5), so 9:00 EST is 19:30 IST. From the second Sunday in March to the first Sunday in November New York is on EDT (UTC−4) and the gap is 9 hours 30 minutes. India has no daylight saving.
What is UTC?
Coordinated Universal Time, the world's reference time, kept by atomic clocks and occasionally adjusted with a leap second to stay within 0.9 seconds of the Earth's rotation. It has no daylight saving; every time zone is an offset from it, such as UTC−5 or UTC+5:30.
Is GMT the same as UTC?
For everyday use, yes: both are UTC+0. Strictly, UTC is the standard and GMT is a time zone, used all year by Iceland and several West African countries and by the UK only in winter. From the last Sunday in March to the last Sunday in October the UK is on British Summer Time (UTC+1).
When do the clocks change in 2026?
In most of the United States and Canada: forward on 8 March, back on 1 November, at 02:00 local time. In the UK and the EU: forward on 29 March, back on 25 October, at 01:00 UTC. South-eastern Australia ends summer time on 5 April and restarts on 4 October; New Zealand ends on 5 April and restarts on 27 September. India, China and Japan do not change.
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