12:00-4:00 AM: Low morning
5:00-8:00 AM: High morning
9:00-10:00 AM: Low day
11:00 AM-12:00 PM: High day
1:00-3:00 PM: Low noon
4:00-6:00 PM- High noon
7:00 PM: Low eve
8:00 PM: High eve
9:00-10:00 PM: Low night
11:00 PM: High night