Fullscreen Digital Clock
Turn any monitor, TV or spare tablet into a large desk or wall clock. Choose 12 or 24-hour time, whether to show seconds and the date, and a colour scheme, then go fullscreen. The digits scale to fill the screen and stay readable from across a room, which suits classrooms, studios, exam halls and control rooms.
Show a Big Clock
--:--
How to Use the Fullscreen Clock
- Pick 12 or 24-hour time and choose whether to show seconds and the date.
- Choose a colour scheme; custom colours show a contrast check.
- Press Go fullscreen. Press Escape or the Exit button to leave.
About This Tool
Teachers and exam invigilators, streamers and broadcast studios, offices that want a wall clock, and anyone who wants a big bedside clock.
Input: Display options · Output: Live clock.
Features and Limitations
Features
- Digits scale with the screen size.
- Five colour schemes including custom colours with a contrast ratio check.
- Works without the Fullscreen API too: the clock fills the window and Escape closes it.
- No flashing; the colon does not blink.
Limitations
- Your screen may dim or sleep; change your power settings to keep it on.
- Time comes from your device clock, so it is only as accurate as that clock.
- Results are computed in your browser; nothing you enter is sent to a server.
Frequently Asked Questions
How do I stop my screen turning off?
Change your device's power or display sleep setting while the clock is showing. Web pages cannot reliably keep every device awake.
How do I leave fullscreen?
Press Escape, or use the Exit fullscreen button shown in the corner of the clock.
Can I show another city's time?
This clock shows your device's local time. For other cities use the World Clock.
Related Tools
More like this: all Timers & Clocks tools, all Productivity tools or the TinySandy home page.