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, 17 August 2026: day of the Moon
- Sunrise
- 06:18
- Sunset
- 20:48
- Next sunrise
- 06:20
A day hour lasts 1h 13m; a night hour, 48 min. Local time (Europe/Berlin).
Day
- 1☽︎ Moon06:18 – 07:31
- 2♄︎ Saturn07:31 – 08:43
- 3♃︎ Jupiter08:43 – 09:56
- 4♂︎ Mars09:56 – 11:08
- 5☉︎ Sun11:08 – 12:21
- 6♀︎ Venus12:21 – 13:33
- 7☿︎ Mercury13:33 – 14:46
- 8☽︎ Moon14:46 – 15:58
- 9♄︎ Saturn15:58 – 17:11
- 10♃︎ Jupiter17:11 – 18:23
- 11♂︎ Mars18:23 – 19:36
- 12☉︎ Sun19:36 – 20:48
Night
- 1♀︎ Venus20:48 – 21:36
- 2☿︎ Mercury21:36 – 22:23
- 3☽︎ Moon22:23 – 23:11
- 4♄︎ Saturn23:11 – 23:59
- 5♃︎ Jupiter23:59 – 00:46
- 6♂︎ Mars00:46 – 01:34
- 7☉︎ Sun01:34 – 02:22
- 8♀︎ Venus02:22 – 03:09
- 9☿︎ Mercury03:09 – 03:57
- 10☽︎ Moon03:57 – 04:44
- 11♄︎ Saturn04:44 – 05:32
- 12♃︎ Jupiter05:32 – 06:20
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Monday, 17 August 2026, the Sun rises at 06:18 and sets at 20:48: the day lasts 14h 30m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 06:20, lasts 9h 32m: twelve night hours of 48 min.
Which planet rules the first hour that day?
The Moon, from 06:18 to 07:31: 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.