15 Minute Timer
Free online countdown — fullscreen, alarm, no signup
How to Use This 15 Minute Timer
Set Duration
The timer is preset to 15 minutes. Click Set to confirm.
Initialize
Review the countdown display and enter fullscreen if needed.
Start
Hit Start to begin. The alarm sounds when time reaches zero.
Cast This Timer to a Bigger Screen
Mirror this countdown to any TV, projector, or classroom display via Chromecast, AirPlay, or HDMI. Perfect for standup meetings, gym training, or classroom quizzes where everyone needs to see the time.
Full casting guideCommon Uses for a 15 Minute Timer
Daily standup meeting timer
Fifteen minutes is the agile standup meeting standard. A visible countdown is a powerful nudge that keeps discussions brief without a facilitator having to interrupt.
Classroom quiz and test section
The recommended duration for a focused classroom quiz section. Project the countdown so students pace themselves naturally without asking how much time remains.
EMOM workout block
A common EMOM (Every Minute On the Minute) workout block runs for 15 minutes. Cast it to the gym display so athletes know exactly how much total work time remains.
Focused work sprint before a break
The minimum viable focused work sprint before your brain needs a reset. Use the countdown to maintain concentration and signal when it is time to step away.
Fifteen minutes is the agile standup meeting standard, the recommended duration for a focused classroom quiz section, a common EMOM workout block, and the minimum viable focused work sprint before your brain needs a reset. It's a productive unit of time that feels structured without feeling overwhelming. This 15 minute timer starts immediately in your browser — no account, no app, no delay. The fullscreen countdown is large enough to read from across a meeting room, gym, or classroom. Cast it to your room display via Chromecast or AirPlay so every participant is working from the same shared clock rather than glancing at their own phones. For standup meetings, a visible 15-minute countdown is a powerful nudge that keeps discussions brief without a facilitator having to interrupt. For EMOM training, it frames the entire block so athletes know exactly how much total work time remains.
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Fun Fact
The average human blink rate is approximately 15 times per minute under normal conditions. This means during this 15-minute timer session, you will blink roughly 225 times. Blinking serves essential functions: it spreads tears across the eye surface, removes irritants, and gives brief micro-rests to your visual system. Interestingly, blink rate increases during conversations and decreases during intense focus activities like reading or screen work.