About

The world's clock, following the sun.

Timezone.io is a comprehensive reference for time zones, cities, and countries — current local times, daylight-saving transitions, and the context behind how time works around the world.

Data sources

Our time and place data comes from open, authoritative sources:

• IANA Time Zone Database — the canonical source for time-zone boundaries, offsets, and daylight-saving rules. iana.org/time-zones
• GeoNames — city names, coordinates, and populations, licensed under CC BY 4.0. geonames.org