Online Clock
See what time it is now with this free online clock — big full-screen digital or analog clock, 12/24-hour, seconds, date, week number and time zones.
Found it useful? Share Online Clock
Free, no sign-up, works in the browser — send it to a friend or add it to your site.
Related tools
- Online ScoreboardKeep score with a free online scoreboard: 2–4 teams, game clock, periods and full screen display. Great for basketball, games night and classrooms. No signup.
- Countdown to DateCreate a free online countdown to any date: days, hours, minutes and seconds until your birthday, vacation or holiday. Shareable link and full screen.
- Military Time ConverterConvert military time to standard 12-hour time and back instantly. Free online military time converter with a 24-hour chart and how to say it aloud.
- Online Alarm ClockSet a free online alarm clock in your browser: pick a time and sound, add a label, snooze for 5 minutes and see the time left in the tab. No app needed.
- Time Zone ConverterConvert time between time zones online free: EST, PST, GMT, IST, CET and every city. Free online time zone converter with daylight saving and business hours.
- Hours CalculatorCalculate hours worked online free from clock-in and clock-out times with breaks. Free online time card calculator with decimal hours, overtime and pay.
How to use Online Clock
- 1Open the page to see the current time for your location, updated every second
- 2Switch between 12- and 24-hour format, hide seconds, add an analog face or pick another city's time zone
- 3Press Full screen to use it as a large desk or classroom clock
Frequently asked questions
What time is it right now?▾
The clock shows the current time for your device's time zone, updating every second, along with the date, the ISO week number and the day of the year. Choose a city to see the time elsewhere.
How accurate is this online clock?▾
It uses your device's clock, which phones and computers normally sync with internet time servers, so it's usually accurate to within a fraction of a second.
What week number is it?▾
The clock shows the ISO-8601 week number used in Europe and business planning: weeks start on Monday, and week 1 is the week containing the first Thursday of the year.
How do I show the clock full screen?▾
Press Full screen (or use your browser's full-screen mode). It's handy as a desk clock, in classrooms, on a spare monitor or during presentations. Press Esc to exit.
What is UTC?▾
Coordinated Universal Time — the world's reference time, the same as GMT for everyday purposes. Time zones are written as offsets from it, like UTC+3 or UTC−5.
How do I switch between 12-hour and 24-hour time?▾
Use the 24-hour toggle. The clock starts in the format your device uses; in 12-hour mode it shows AM (midnight to noon) and PM (noon to midnight).
Embed Online Clock on your website▾
Paste this snippet into your page. The embedded tool runs in your visitor's browser and shows a small “Powered by clkr.work” link.