About ClockDen
ClockDen is a simple, fast world clock. It shows the exact current time in any city or country, with the seconds, and keeps itself in step with internet time rather than trusting the clock on your device.
What you can do here
- See the exact time where you are, or search more than 220,000 cities and towns in 246 countries and territories.
- Open a city page for its local date, time zone, sunrise and sunset, daylight saving changes and the time difference to other cities.
- Turn any screen into a clean full-screen clock, with 12 or 24-hour display, several colour themes and fonts.
- Keep your own list of world clocks, saved in your browser.
How the time is kept accurate
Your device clock can be a few seconds off. The page asks internet time sources for the true time, corrects for the network delay, and then runs the clock from that. Time zone and daylight saving rules come from the standard IANA time zone database built into your browser and our server.
Where the data comes from
City names, countries, coordinates and populations come from GeoNames, which is licensed under Creative Commons Attribution 4.0. Sunrise and sunset are calculated from each city's coordinates and are approximate. For legal, travel or safety-critical purposes, please confirm times with an official source.
Questions or corrections? See the contact page.