World clock: current time in any city
Time Difference
| City | Time | UTC |
|---|---|---|
| Madrid | --:--:-- | -- |
| Canary Islands | --:--:-- | -- |
| Barcelona | --:--:-- | -- |
| Valencia | --:--:-- | -- |
| Seville | --:--:-- | -- |
| Bilbao | --:--:-- | -- |
| Málaga | --:--:-- | -- |
| Mexico City | --:--:-- | -- |
| Buenos Aires | --:--:-- | -- |
| Bogotá | --:--:-- | -- |
| Lima | --:--:-- | -- |
| Santiago de Chile | --:--:-- | -- |
| Caracas | --:--:-- | -- |
| Montevideo | --:--:-- | -- |
| Asunción | --:--:-- | -- |
| La Paz | --:--:-- | -- |
| Quito | --:--:-- | -- |
| São Paulo | --:--:-- | -- |
| Rio de Janeiro | --:--:-- | -- |
| San José | --:--:-- | -- |
| Panama City | --:--:-- | -- |
| Havana | --:--:-- | -- |
| Santo Domingo | --:--:-- | -- |
| San Juan | --:--:-- | -- |
| Guatemala City | --:--:-- | -- |
| Managua | --:--:-- | -- |
| Tegucigalpa | --:--:-- | -- |
| San Salvador | --:--:-- | -- |
| Miami | --:--:-- | -- |
| New York | --:--:-- | -- |
| Los Angeles | --:--:-- | -- |
| Chicago | --:--:-- | -- |
| Houston | --:--:-- | -- |
| San Francisco | --:--:-- | -- |
| Boston | --:--:-- | -- |
| Toronto | --:--:-- | -- |
| London | --:--:-- | -- |
| Paris | --:--:-- | -- |
| Berlin | --:--:-- | -- |
| Rome | --:--:-- | -- |
| Lisbon | --:--:-- | -- |
| Brussels | --:--:-- | -- |
| Amsterdam | --:--:-- | -- |
| Stockholm | --:--:-- | -- |
| Oslo | --:--:-- | -- |
| Copenhagen | --:--:-- | -- |
| Vienna | --:--:-- | -- |
| Zurich | --:--:-- | -- |
| Athens | --:--:-- | -- |
| Istanbul | --:--:-- | -- |
| Moscow | --:--:-- | -- |
| Tokyo | --:--:-- | -- |
| Beijing | --:--:-- | -- |
| Sydney | --:--:-- | -- |
| Dubai | --:--:-- | -- |
| Bangkok | --:--:-- | -- |
| Singapore | --:--:-- | -- |
| Seoul | --:--:-- | -- |
| Cairo | --:--:-- | -- |
| Johannesburg | --:--:-- | -- |
What is this world clock?
The AlarmClock24 world clock shows the current time in more than 60 cities at once, in real time. Add cities to your personal list and see them side by side with their UTC offsets — perfect for remote teams, travelers, and anyone scheduling calls across time zones.
Times are computed directly in your browser with the Intl API and IANA time
zone data, so daylight saving changes are handled automatically. Nothing is stored on a server.
How to compare time zones
- Pick a city from the selector and press "Add city".
- Repeat for every city you need — they stay saved between visits.
- Read the difference table below for instant UTC offsets.
For deep dives, each city has its own page, like time in Tokyo or time in New York, with the current hour, UTC offset, and the best windows for calling.
Calling across time zones
The golden rule: find the overlap of working hours. Europe and the Americas overlap in the European afternoon; Europe and East Asia overlap in the European morning. The city pages show the exact offset so you can do the math in seconds.
Frequently asked questions
How does the world clock handle daylight saving?
Each city uses its IANA time zone, and the browser applies DST rules automatically, so the displayed times always reflect the current offset.
Does my city list get saved?
Yes, your added cities are stored locally in your browser and restored the next time you visit.
Do I need internet to check the time?
After the page loads, no — the times are computed locally from your device clock and time zone data.