World time zones

Where in the world is it morning right now? See the current local time in every UTC offset, color-coded by day and night, with major cities in each zone. --:-- UTC

Live time in every major zone

How time zones work

Standard offsets

Earth rotates 360° in 24 hours, so each hour corresponds to roughly 15° of longitude. The world is divided into 24 main "hour zones," each offset from UTC (Coordinated Universal Time, the modern successor to GMT). London sits near UTC+0; New York is roughly five hours behind (UTC−5); Tokyo is nine hours ahead (UTC+9).

Why some zones aren't a whole hour

Several countries chose half-hour or quarter-hour offsets, usually for political or geographic reasons. The most famous oddities:

• India (UTC+5:30) — one zone for the whole country, picking a midpoint between its east and west halves.
• Nepal (UTC+5:45) — the only "+45" offset, deliberately set 15 minutes ahead of India to maintain independence.
• Iran (UTC+3:30), Afghanistan (UTC+4:30), Newfoundland (UTC−3:30), parts of Australia (UTC+8:45, UTC+9:30) — all use half- or quarter-hour offsets.

Daylight Saving Time

Roughly a third of the world's countries shift their clocks forward by one hour for part of the year ("summer time"), then back again in autumn. The dates differ by country — and some regions within the same country (e.g. Arizona, Saskatchewan, most of Queensland) opt out entirely. The clocks above use the local rules for each zone, so they automatically reflect DST when it's in effect.

The International Date Line

Running roughly along 180° longitude through the Pacific, the International Date Line marks where one calendar day ends and the next begins. Cross it heading west and you skip a day; cross it heading east and you live the same day twice. Kiribati famously moved the line in 1995 so all its islands share the same date — meaning Kiritimati (UTC+14) sees the new year before anywhere else on Earth.

Browse cities by region

Want to plan around a specific time zone? Browse all 308 cities on our world map — each city's panel shows its local time, sunrise/sunset, and current weather.