Lunar Day

New York · August 21, 2026

Planetary Hours

Planetary hours divide daylight and night into 12 equal parts each, with every hour ruled by a planet in the Chaldean order.

Current planetary hour

#24 Day/Night

Ruler of the day

Saturn

Ruler of the night

Mercury

Planetary hours

StartPlanetHour
23:14Moonyesterday 5
00:06Saturnyesterday 6
00:59Jupiteryesterday 7
01:51Marsyesterday 8
02:43Sunyesterday 9
03:36Venusyesterday 10
04:28Mercuryyesterday 11
05:20Moonyesterday 12
06:13Saturn 1
07:20Jupiter 2
08:28Mars 3
09:35Sun 4
10:43Venus 5
StartPlanetHour
11:50Mercury 6
12:58Moon 7
14:06Saturn 8
15:13Jupiter 9
16:21Mars 10
17:28Sun 11
18:36Venus 12
19:43Mercury 1
20:36Moon 2
21:28Saturn 3
22:21Jupiter 4
23:13Mars 5

The convenient view lists all hours of the day in order of start time — from midnight to midnight — making it easier to plan your schedule.

Sunrise

06:13

Sunset

19:43

Next sunrise

06:14

Ruler of the day

Saturn

Ruler of the night

Mercury

What are planetary hours?

A planetary hour is a traditional division of the day into twelve daylight hours (from sunrise to sunset) and twelve night hours (from sunset to the next sunrise). Each hour is ruled by one of the seven classical planets — Saturn, Jupiter, Mars, the Sun, Venus, Mercury, and the Moon — in the Chaldean order. The first daylight hour belongs to the planet that rules the day of the week.

Planetary hours are a traditional system with ancient astrological and religious roots. They are not a scientific method of timekeeping.