Planetary hours
in Dortmund.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Monday, 31 August 2026: day of the Moon
- Sunrise
- 06:40
- Sunset
- 20:18
- Next sunrise
- 06:42
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Europe/Berlin).
Day
- 1☽︎ Moon06:40 – 07:49
- 2♄︎ Saturn07:49 – 08:57
- 3♃︎ Jupiter08:57 – 10:05
- 4♂︎ Mars10:05 – 11:13
- 5☉︎ Sun11:13 – 12:21
- 6♀︎ Venus12:21 – 13:29
- 7☿︎ Mercury13:29 – 14:38
- 8☽︎ Moon14:38 – 15:46
- 9♄︎ Saturn15:46 – 16:54
- 10♃︎ Jupiter16:54 – 18:02
- 11♂︎ Mars18:02 – 19:10
- 12☉︎ Sun19:10 – 20:18
Night
- 1♀︎ Venus20:18 – 21:10
- 2☿︎ Mercury21:10 – 22:02
- 3☽︎ Moon22:02 – 22:54
- 4♄︎ Saturn22:54 – 23:46
- 5♃︎ Jupiter23:46 – 00:38
- 6♂︎ Mars00:38 – 01:30
- 7☉︎ Sun01:30 – 02:22
- 8♀︎ Venus02:22 – 03:14
- 9☿︎ Mercury03:14 – 04:06
- 10☽︎ Moon04:06 – 04:58
- 11♄︎ Saturn04:58 – 05:50
- 12♃︎ Jupiter05:50 – 06:42
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Monday, 31 August 2026, the Sun rises at 06:40 and sets at 20:18: the day lasts 13h 38m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 06:42, lasts 10h 24m: twelve night hours of 52 min.
Which planet rules the first hour that day?
The Moon, from 06:40 to 07:49: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.