World Clock &
Time Zone Converter
See the time anywhere in the world, live - or pick a moment and see how it lines up everywhere at once.
Everything is computed locally in your browser using your device's own time zone data. Nothing is uploaded or sent to analytics.
About Time Zones
What is UTC?
UTC (Coordinated Universal Time) is the reference time zone every other zone is defined relative to - it doesn't observe daylight saving, so it's the stable baseline used for offsets like "UTC+8".
What's a UTC offset?
It's how many hours a time zone is ahead of or behind UTC right now. Offsets can change through the year in zones that observe daylight saving, which is why ClockMotion always computes them live rather than showing a fixed number.
Why do clocks change twice a year?
Daylight saving time shifts clocks forward in spring and back in autumn in the places that observe it. It doesn't happen everywhere, and not on the same dates - which is exactly why a simple hour-difference isn't reliable and a real time zone database is needed.
Is my data saved anywhere?
Only on this device. Your chosen cities and format preference are kept in your browser's local storage so they're there next time you visit - they're never uploaded or sent to analytics.