Grindstone can remind you to take breaks at regular intervals while you’re working. To enable this feature, navigate to the Grindstone menu and then click on Options.
In the Options panel, click on the Reminders section and check the “Remind Me to Take Breaks While Working” option. Also. enter an interval of time in hours, minutes, and seconds for your desired break reminder:
Note that time does not accumulate for taking breaks while not timing tasks. If you have the break reminder set to remind you to take a break every 25 minutes and you time a task for five minutes and then stop timing it, you will not be reminded to take a break until you time another 20 minutes.
Below you can view an example of a break reminder which appears after a desired amount of time: