How to use the world clock
- Your own time, date and time zone appear at the top, updating every second.
- Pick a city in Add a city to add it to the list. You can show up to 24 cities.
- Remove a city with the × button on its card, or choose Restore default cities.
- To plan a call or a trip, enter a date and time under Compare at another time. All cities then show their time at that moment instead of the live time.
Each card shows the local time, the day (today, tomorrow or yesterday), how far ahead or behind you the city is, its UTC offset and a sun or moon marker for daytime (06:00 to 17:59) or night.
Time zones and UTC offsets
Local time is set by time zones, written as an offset from Coordinated Universal Time (UTC). Paris is UTC+1 in winter and UTC+2 in summer. New York is UTC−5 in winter and UTC−4 in summer. Some offsets are not whole hours: India uses UTC+5:30 and Nepal UTC+5:45. Many countries, including Saudi Arabia, Japan and India, do not change their clocks at all.
Example: one moment in January
When it is 09:00 in London (UTC+0) on a January morning:
| City | Local time | Offset |
|---|---|---|
| New York | 04:00 | UTC−5 |
| Dubai | 13:00 | UTC+4 |
| Tokyo | 18:00 | UTC+9 |
| Sydney | 20:00 | UTC+11 (summer time) |
Daylight saving time
The European Union and the United Kingdom move to summer time on the last Sunday of March and back on the last Sunday of October. The United States and Canada change on the second Sunday of March and the first Sunday of November. Because these dates differ, the gap between London and New York is four hours instead of five for a few weeks each year. Australia and New Zealand have summer time from about October to April. The world clock applies all of these rules automatically.
Related tools
To add or subtract hours from a time, use the time calculator. To count down to an event in another city, create a countdown.