To fix alarm clock not working on Pixel phones: Pixel 5, Pixel 4a 5G, Pixel 4a, Pixel 4 XL, Pixel 4, Pixel 3a XL, Pixel 3a, Pixel 3 XL, Pixel 3, Pixel 2, Pixel 2 XL, Pixel XL, Pixel :
1.
From a Home screen, swipe up to display all apps.
2.
Navigate to Settings icon > Apps &
notifications.
3.
Tap See all 'xx' apps.
4.
Tap the Clock app.
5.
Tap Storage & cache.
6. Tap Clear cache.
7. Tap Clear storage.
Now, after doing the above steps, check if the alarm clock is working as usual.
If the problem persist, then do the following steps:
1.
From a Home screen, swipe up to display all apps.
2. Navigate to Settings icon > Apps & notifications.
3. Open the menu by tapping on the three vertical dots at the top right corner.
2. Navigate to Settings icon > Apps & notifications.
3. Open the menu by tapping on the three vertical dots at the top right corner.