Color Bar Timer
A giant bar drains from green to amber to red as time runs out.
10:00
About the color bar timer
The color bar is the clearest visual timer there is: a giant bar drains from right to left while its color moves through traffic-light stages — green while there's plenty of time, amber as it gets short, red for the final stretch.
It's readable from the back row of any classroom, which makes it ideal for projected timers during tests, group work, and timed stations. Students self-regulate without anyone announcing the time.
Need a plain countdown instead? Use the online timer or set an alarm for a specific time.
Frequently Asked Questions
- When does the bar change color?
- The color shifts continuously from green through amber to red as time runs out, so the bar is amber around the halfway point and solid red in the final stretch.
- Can I run this timer full-screen?
- Yes. Press the Full screen button and the timer fills the whole display — ideal for projectors and smartboards.
- Is this timer free to use?
- Yes. Every timer on UntilClock is completely free with no sign-up, download, or ads.