Set 45 Minutes Timer Online
Set timer for 45 Minutes directly in your browser. This free online countdown clock counts down from 45 minutes to zero and plays a loud alarm when time is up. To start the timer, simply click the Start button above.
Popular Uses
- School Class Period - time a standard 45-minute lesson and signal clear transitions between instruction, activity, and wrap-up.
- Ultradian Work Block - use 45 minutes as the focused half of a 90-minute Ultradian rhythm deep-work session.
- Gym Compound Lift Session - complete a full squat, bench, and row session — warm-up included — in under 45 minutes.
- Roast Chicken First Phase - roast a whole chicken at high heat for the first 45 minutes then reduce to finish cooking evenly.
- Language Study Block - study vocabulary, grammar, and listening in a target language for 45 focused, structured minutes.
Frequently Asked Questions
Does this 45 minutes timer make a sound?
Yes. When the countdown reaches zero, the browser plays a short alarm chime. Keep the tab open and your device volume enabled.
Can I use this timer in full screen?
Yes. Use the full-screen button to turn the countdown into a large display for classrooms, workouts, meetings, cooking, or livestreams.
How many seconds is this timer?
This countdown is exactly 2,700 seconds long.
More Timer Durations
Need a different time? Select from our quick preset timers below.
Seconds:
Minutes: