I've actually adopted the Japanese Buddhist clock. There are 12 hours: 6 during daylight hours and 6 during night time hours. The actual time of each hour dep

I've actually adopted the Japanese Buddhist clock. There are 12 hours: 6 during daylight hours and 6 during night time hours. The actual time of each hour depends on the season and the latitude. Wikipedia: https://en.wikipedia.org/wiki/Japanese_clock#The_traditional_Japanese_time_system https://en.wikipedia.org/wiki/Japanese_clock#The_traditional... I really like it. There is actually an Android app on Fdroid: https://f-droid.org/en/packages/com.aragaer.jtt/ https://f-droid.org/en/packages/com.aragaer.jtt/ although it unfortunately doesn't have alarms -- I really need to get off my butt and contribute that feature. I set my alarm so that I get up in time to go for a walk at sunrise.