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, 18 August 2025: day of the Moon
- Sunrise
- 06:20
- Sunset
- 20:46
- Next sunrise
- 06:22
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Europe/Berlin).
Day
- 1☽︎ Moon06:20 – 07:32
- 2♄︎ Saturn07:32 – 08:44
- 3♃︎ Jupiter08:44 – 09:56
- 4♂︎ Mars09:56 – 11:09
- 5☉︎ Sun11:09 – 12:21
- 6♀︎ Venus12:21 – 13:33
- 7☿︎ Mercury13:33 – 14:45
- 8☽︎ Moon14:45 – 15:57
- 9♄︎ Saturn15:57 – 17:09
- 10♃︎ Jupiter17:09 – 18:21
- 11♂︎ Mars18:21 – 19:34
- 12☉︎ Sun19:34 – 20:46
Night
- 1♀︎ Venus20:46 – 21:34
- 2☿︎ Mercury21:34 – 22:22
- 3☽︎ Moon22:22 – 23:10
- 4♄︎ Saturn23:10 – 23:58
- 5♃︎ Jupiter23:58 – 00:46
- 6♂︎ Mars00:46 – 01:34
- 7☉︎ Sun01:34 – 02:22
- 8♀︎ Venus02:22 – 03:10
- 9☿︎ Mercury03:10 – 03:58
- 10☽︎ Moon03:58 – 04:46
- 11♄︎ Saturn04:46 – 05:34
- 12♃︎ Jupiter05:34 – 06:22
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Monday, 18 August 2025, the Sun rises at 06:20 and sets at 20:46: the day lasts 14h 26m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 06:22, lasts 9h 36m: twelve night hours of 48 min.
Which planet rules the first hour that day?
The Moon, from 06:20 to 07:32: 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.