Alarm Recommendations

Battery Optimization

Suntimes must be not optimized for alarms to work reliably.

Settings -> Apps -> Suntimes -> Battery -> Unrestricted

Battery Optimization Battery Optimization

Note

On most devices the optimized setting may delay alarms up to 15 minutes. Other devices may restrict alarms without special configuration.

The following devices are affected: Asus, Blackview, Huawei, LENOVO, Meizu, OnePlus, OPPO, realme, Samsung, Sony, Unihertz, Vivo, WIKO, and Xiaomi. Check https://dontkillmyapp.com/ for solutions.

Notification Settings

Notifications must be enabled for alarms to display correctly.

Settings -> Apps -> Suntimes -> Notifications -> Show Notifications

Show Notifications Show Notifications

Notification Permissions Notification Permissions

Autostart Permission

Suntimes must be granted autostart permissions or alarms may fail to work after a reboot (Xiaomi devices only).

Security app > Permissions > Auto-start