World Time Zone Map
A live map of every time zone in the world coloured by its current UTC offset, with each zone's local time on hover and the time now at every offset.
Looking this up…
Loading time zone boundaries…
How to use the world time zone map
- Look at the colours. Zones with the same clock time right now share a colour.
- Hover a zone. See its IANA name, local time, abbreviation and UTC offset.
- Read the offset strip. Below the map: every offset in use now with its current time.
- Click to pin. Click a zone to keep its full date and time on screen.
What a world time zone map is for
International calls and meetings
See at a glance who is awake.
Travel
Plan arrival times across many zones.
Odd offsets
Spot the half- and quarter-hour zones (India, Nepal, Newfoundland, parts of Australia).
Countries with many zones
Russia, the US and Australia span many; China uses one.
The date line
See where it is already tomorrow.
Teaching
How time zones follow politics as much as longitude.
Where the zones come from
Boundaries are from timezone-boundary-builder (built from OpenStreetMap), including the nautical time zones over the oceans, drawn in the Robinson projection and simplified.
Each zone's current offset, abbreviation and daylight saving status come from the IANA time zone database in your browser, refreshed every 30 seconds. Colours follow the current offset, so they change when countries switch to or from daylight saving.
Frequently asked questions
How many time zones are there?
A few dozen different UTC offsets are in use — the strip below the map lists every one in use right now — but the IANA database names several hundred zones because their histories differ.
Why does China have one time zone?
By national decision, all of China uses UTC+08:00 even though it spans about 60° of longitude — four hours of sun time.
What are the zones over the ocean?
Nautical time zones, one hour wide by longitude, used at sea.
Where is it already tomorrow?
The zones just west of the International Date Line, such as Kiribati at UTC+14, are first into each new day.
Why do colours change in March and November?
Many countries switch to or from daylight saving then, changing their offset.
Related tools
Time Zone Finder
Type any address or use your location and get its IANA time zone, current local time, UTC offset, whether daylight saving time is in effect, and the date of the next clock change.
Time zone from Open-Meteo; rules from the IANA tz database in your browser
Time Difference Calculator
Compare the time in several cities at once, see how many hours ahead or behind each one is, convert a time between them and find the hours that suit everyone.
IANA tz database in your browser; Open-Meteo time zone lookup
US Time Zone Map
A map of US time zones with the current time in each, their abbreviations and UTC offsets, and which areas skip daylight saving time — hover any area for its local clock.
timezone-boundary-builder (OpenStreetMap); IANA tz database
Convert Time Zones
Pick a time in one city and see the same moment in another city, with daylight saving and the date change handled.
IANA tz database in your browser; Open-Meteo time zone lookup
Sun Position Calculator
Pick a place, date and time and get the sun's elevation and compass direction, plus sunrise, sunset, solar noon and day length in local time, with a chart of the sun's path that day.
NOAA solar calculator equations (Meeus, Astronomical Algorithms)
Sunrise Sunset Calculator
Get sunrise, sunset, dawn, dusk, solar noon and day length for every day of any month at any place, in its local time with daylight saving, and download the table.
NOAA solar calculation equations; IANA tz database