Classrooms and screens
Put a readable time display on a whiteboard, projector, or shared screen.
Clock Tab
ClockTab Online
Open a free ClockTab-style browser clock with a large fullscreen digital display for desks, classrooms, TVs, second monitors, and focus sessions.
ClockTab Online
Meetings and offices
Keep the exact current time visible in conference rooms, desks, reception areas, and dashboards.
Streams and recordings
Use a clean browser clock in OBS or on a second display.
Related clock tools
ClockTab Online FAQ
Does this clocktab online show seconds?
Seconds are shown by default, and you can hide them with the display toggle.
Can I use it full screen?
Yes. Use your browser's full-screen mode or open the fullscreen clock page for a display-first layout.
Is the time live?
Yes. The clock follows your device time and updates every second in the browser.