Finally, on the Add new alarm pop up, set the following – see the letters in the screenshot below:A – Alarm time – when you want the alarm to ring – the first 2 numbers are hours, the second set are minutesB – Alarm name – the name that will be displayed when the alarm rings – this helps to remind you what the alarm is about.C – If you want the alarm to ring once, do not check the Repeat checkbox. However, to set the alarm to repeat, check this checkbox. Then, click on the days of the week you want the alarm to ring.D – Use this drop-down to select the alarm’s ring tone. E – Use this drop-down to set how many minutes you can snooze the alarm (default is 10 minutes). , Keep your laptop or tablet plugged in and make sure the volume on your device is high enough to hear the alarm or timer. To respond to an alarm, select Snooze, or Dismiss the alarm to stop it entirely. If you need to change the time zone of your clock, go to Settings > Time & language > Date & time., Windows 10 has a built-in alarm app for quick sleep schedules and reminders. Here is how to set up and use alarms in Windows 10. On Windows 10, you can find an app called “Alarms & Clock” that lets you set up alarms, timer, and even functions as a stopwatch..