Online full-screen clock: exact time now
This online clock shows the exact time in Brasília or any city on the list, with or without seconds, in 24-hour or 12-hour format. Click Full screen to use it as a desk clock, on a second monitor or in a presentation. It starts from the site server's time, so it stays correct even if your device's clock is fast or slow.
To compare several cities at once, use world time; to understand how time zones work, read the time zones guide.
Frequently asked questions
Does this clock show the exact time?
Yes. It starts from the site server's time and updates every second, using the time zone of the city you choose.
How do I make the clock full screen?
Click Full screen. Press Esc to exit.
Can I see the time in another city or country?
Yes. Pick the city from the list, which includes the capitals of many countries and the time zones of Brazil.
Does the clock use my computer's time?
No. It uses the server's time, so it shows the correct time even if your device's clock is wrong.