The countdown is calculated at the specified time.

Start, Stop, Reset

Click the "Start" button to start the countdown.

Click the "Stop" button to pause the countdown.

Click the "Reset" button to remove the countdown.

Specify time

Select hours, minutes and seconds and click the "Set" button to set the time.

You can also change the time by clicking buttons such as "+5 minutes" or "-5 minutes".

Setting

You can change whether to display the countdown time up to milliseconds by changing "Display milliseconds".

If you change the "When finished" setting to "Show message", you can display a message when the countdown is over.