Here are the steps you need to follow to set a timer on your board:
Step 1. Click on the “Add” button
Step 2. Select the “New timer” option
Final Step. Enter the number of minutes for your countdown, then click Start. The countdown will appear next to the Add button.
Note 1:
You can also play a sound when the timer ends. Just check the option "Play a sound when the timer ends" before starting.
Note 2:
You can stop the timer by clicking on the countdown button.