How many time zones are there?

There are 38 standard time zones, ranging from UTC-12 (Baker Island) to UTC+14 (Line Islands, Kiribati). Most span whole hours, but India (UTC+5:30), Nepal (UTC+5:45), and parts of Australia use half-hour or 45-minute offsets.

When does daylight saving time change?

It varies by country. The US changes in March and November. Europe changes in March and October. Most of Asia, Africa, and South America don't observe DST at all. This tool uses your browser's timezone database, which updates automatically.

UTC (Coordinated Universal Time) is the global time standard. All time zones are defined as offsets from UTC. It replaced GMT as the reference standard and does not observe daylight saving time, making it ideal for servers, APIs, and scheduling across zones.

How to Convert Time Zones for Remote Teams (2026)

🌍

Try Time Zone Converter

Free, no signup →