From Ryan Nelson on 2016/10/03 20:22:41 +0000
Automatically update the alarm time for either sunrise or civil twilight (typically about 30 minutes earlier).
Copied from original feature request: http://urbandroid.uservoice.com/forums/264867-sleep-as-android/suggestions/16479934-automatic-sunrise-civil-twilight-alarm
Moved to Before / After sunrise alarm topic.