15 Second Timer

1. Click “Start” to begin the 15-second countdown.
2. An alert will notify you when 15 seconds have elapsed.
3. Use the “Pause” button to temporarily halt the 15 second timer.
4. Click “Reset” to restart the timer at 15 seconds.
5. Adjust the duration using the dropdown menus for hours, minutes, and seconds.
6. Toggle sound alerts using the “Sound” button.
7. Enter fullscreen mode by clicking the “Fullscreen” button.

1. Fitness: Timing short sprints or holds.
2. Breathing exercises: Structured breathing cycles.
3. Games: Timing quick actions or decisions.
4. Photography: Managing brief exposures.
5. Cooking: Timing precise actions.

In just 15 seconds…

• The human heart beats about 15 times.
• Around 150,000 tweets are posted.
• A person blinks about 4 times.

A 15-second timer is equivalent to:

• 0.004167 hours
• 0.250000 minutes
• 15,000 milliseconds

For a comprehensive time equivalent, including microseconds, nanoseconds, days, weeks, months, and years, please visit our Time Conversion Tool.