We've changed our name — alarm-clock.org is now timeandspace.science. Same tools, same pages, new address.
World Clock
Live times around the world, with sunrise & sunset for each city. The list starts just west of your own zone and wraps around the globe — your zone is highlighted.
Current time in other cities
The grid above shows one city per UTC offset. These share those offsets, and each has its own page with the local time, time zone, daylight-saving state and sunrise and sunset:
About this clock
Each card shows the live local time, the day, the UTC offset, how far it is from your time, and today's sunrise ↑ and sunset ↓. A ☀️ or 🌙 shows whether the sun is up there right now. Everything updates once a minute and follows each region's daylight-saving rules automatically.
Counting down to a moment across zones? Make a countdown — it ends at the same instant for everyone. Or set a quick timer. Need the gap between two clock times instead — "how many hours between 9 AM and 5:30 PM"? Try the time difference calculator.
This site never stores a fixed time difference for any city. Each zone is worked out by your own device, from the standard world time-zone database it keeps up to date — so when a country changes its clock rules, this page follows automatically. How time zones and daylight saving are handled.
World clock FAQ
Is the world clock free? Yes — free, with no sign-up. It shows live times worldwide right in your browser.
Does it show my time zone? Yes — the list starts just west of your own zone and wraps around the globe, with your zone highlighted.
Can I switch between 12- and 24-hour time? Yes — tap the 24-hour / 12-hour button to switch the whole list.