Live world clock for multiple timezones, plus a converter to instantly find what time it is anywhere in the world. Add or remove cities as needed.
Pick a date & time and a source timezone to see the equivalent in all your clocks above.
A timezone is a region of the Earth that observes a uniform standard time. Timezones are defined as offsets from UTC (Coordinated Universal Time) — the primary time standard that all clocks worldwide are synchronized to. For example, UTC+1 means one hour ahead of UTC, and UTC-5 means five hours behind.
There are 38 distinct UTC offsets in use today, ranging from UTC−12:00 (Baker Island) to UTC+14:00 (Line Islands). Most offsets are whole hours, but some countries use half-hour (India: UTC+5:30, Iran: UTC+3:30) or even 45-minute offsets (Nepal: UTC+5:45).
Many countries advance their clocks by one hour during summer to extend evening daylight — this is called Daylight Saving Time (DST). The practice means that the time difference between two cities can change by ±1 hour depending on the time of year. Not all countries observe DST: most of Africa, Asia, and South America do not. In the US, DST runs from the second Sunday in March to the first Sunday in November.
| Abbreviation | Full name | UTC offset | Region |
|---|---|---|---|
| UTC / GMT | Coordinated Universal Time | UTC+0 | Universal |
| EST / EDT | Eastern Standard / Daylight Time | UTC−5 / UTC−4 | US East |
| CST / CDT | Central Standard / Daylight Time | UTC−6 / UTC−5 | US Central |
| PST / PDT | Pacific Standard / Daylight Time | UTC−8 / UTC−7 | US West |
| CET / CEST | Central European (Summer) Time | UTC+1 / UTC+2 | Europe |
| IST | India Standard Time | UTC+5:30 | India |
| CST | China Standard Time | UTC+8 | China |
| JST | Japan Standard Time | UTC+9 | Japan / Korea |
| AEST / AEDT | Australian Eastern (Summer) Time | UTC+10 / UTC+11 | Australia |
UTC and GMT are often used interchangeably, and for most practical purposes they show the same time. The technical difference is that GMT is a timezone (based on mean solar time at the Greenwich meridian) while UTC is a time standard (based on atomic clocks). Modern systems use UTC as the reference.
Use the Time Converter above: enter your preferred meeting time, select your timezone as "From", and check the converted times in all your added clocks. A common overlap for US + Europe is 14:00–17:00 UTC, which covers morning in New York and afternoon in London/Madrid.
India uses a single timezone (IST, UTC+5:30) for the entire country. The half-hour offset is a historical choice made at independence, roughly splitting the difference between the eastern and western extremes of the country. Nepal (UTC+5:45) went even further to avoid sharing a timezone with India.
No. Japan, China, South Korea, India, and most of Africa and Asia do not observe DST. This means the time difference between these countries and DST-observing regions like the US and Europe changes by one hour in spring and autumn.