How to use the world clock
Hover over the map (or tap it on a phone) to see the local time of the nearest city, its time difference and how it compares with yours. Zoom with a pinch, the scroll wheel or the + button, and search for any city or country in the search box. Add cities to “My clocks” and your browser will remember them.
Planning meetings across time zones
Use the slider to move hours forward or back and the map instantly shows where it is day or night and where people are in working hours (the ring around a dot marks 9 am to 6 pm). This makes it quick to find a time that works for most participants.
What are time zones and UTC?
The Earth is divided into 24 main time bands about 15 degrees wide, but country borders and political decisions mean real time zones differ from that. UTC (Coordinated Universal Time) is the reference and is not affected by daylight saving time. Hungary uses UTC+1 in winter and UTC+2 in summer. Some offsets are not whole hours: India is UTC+5:30 and Nepal UTC+5:45.
Daylight saving time
In the European Union the clock change starts on the last Sunday of March and ends on the last Sunday of October. In the United States it starts on the second Sunday of March and ends on the first Sunday of November. So for a few weeks between the changes the time difference between the two regions is one hour different from usual. The world clock handles these changes automatically using your browser’s time zone database.
Frequently asked questions
How does the site know my time zone? Your browser provides it and the data never leaves your device. Why do I not see every city? The default view shows only the biggest cities; zoom in or search to find the rest (currently 228 cities covering 191 countries and territories).