Online Stopwatch
Online Stopwatch (chronometer) to mark time intervals.
Start an online stopwatch for free and count elapsed time in hours, minutes, seconds and milliseconds.
What Is the Online Stopwatch?
Online Stopwatch is an easy-to-use application that allows you to count and start a stopwatch on your computer. It measures elapsed time in hours, minutes, seconds, and milliseconds. The tool also allows viewing in full screen mode. You can use the online stopwatch with hotkeys depending on the device you use.
How Do I Use the Online Stopwatch?
It's very simple to start using the online stopwatch. Here's how to use the online tool:
- Press Start to start the stopwatch.
- Press Pause to pause the stopwatch.
- Press Pause or Start again to continue counting.
- Click Reset to reset the timer.
- Press Full Screen to switch view mode.
Finally, you can start or pause a running stopwatch by pressing the spacebar as a shortcut.
Does the Online Stopwatch Work if I Close This Tab?
No, this online stopwatch will not work if you close this tab. You can switch tabs, minimize or use any other app, and the digital stopwatch will keep running.
Does the Online Stopwatch Work in Sleep Mode?
No, none of the stopwatches or online timers work in sleep mode.
Learn More About Stopwatches
Basically a stopwatch is a clock designed to measure the amount of time that elapses between turning it on and off.
The stopwatch is used when there is a need to measure a period of time accurately and with a minimum of complication, such as laboratory experiments and sporting events such as sprints.
There are two types of stopwatches, mechanical and digital. Mechanical chronometers are powered by a mainspring, which must be wound by turning the knurled knob on top of the chronometer. Digital (electronic) timepieces which, due to the crystal oscillator timing element, are much more accurate than mechanical watches. As they contain a microchip, they also include date and time of day functions. Some may have a connector for external sensors, allowing the timer to be triggered by external events, thus measuring elapsed time much more accurately than would be possible by pressing the buttons with your finger.
A curiosity in the world of sports was the end of mechanical timing in the Olympics came in the 1960s, due to the increasing accuracy of electronic timing and the growing recognition of human fallibility.