Clock

by BlackyHawky

Release

Customizable and privacy-conscious open-source clock, based on AOSP Clock.

Clock

by Fossify

Check time zones, set alarms, run timers, use a stopwatch, and add clock widgets.

Sleep

by sleep.urbandroid.org

Sleep as Android is an alarm clock and sleep tracking app

Suntimes

by Forrest Guice

Sunlight and moonlight times (and alarms)

Interval Midpoints

by Forrest Guice

A midpoint calculator add-on for Suntimes.

Solunar Periods

by Forrest Guice

A hunting and fishing add-on for Suntimes.

Natural Hour

by Forrest Guice

A 24-hour clock and Roman timekeeping add-on for Suntimes.

Suntimes NFC

by Forrest Guice

An NFC add-on for Suntimes Alarms.