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 Tuesday, 12 May 2026: day of Mars
- Sunrise
- 05:43
- Sunset
- 21:10
- Next sunrise
- 05:41
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Berlin).
Day
- 1♂︎ Mars05:43 – 07:00
- 2☉︎ Sun07:00 – 08:17
- 3♀︎ Venus08:17 – 09:35
- 4☿︎ Mercury09:35 – 10:52
- 5☽︎ Moon10:52 – 12:09
- 6♄︎ Saturn12:09 – 13:26
- 7♃︎ Jupiter13:26 – 14:44
- 8♂︎ Mars14:44 – 16:01
- 9☉︎ Sun16:01 – 17:18
- 10♀︎ Venus17:18 – 18:36
- 11☿︎ Mercury18:36 – 19:53
- 12☽︎ Moon19:53 – 21:10
Night
- 1♄︎ Saturn21:10 – 21:53
- 2♃︎ Jupiter21:53 – 22:36
- 3♂︎ Mars22:36 – 23:18
- 4☉︎ Sun23:18 – 00:01
- 5♀︎ Venus00:01 – 00:43
- 6☿︎ Mercury00:43 – 01:26
- 7☽︎ Moon01:26 – 02:08
- 8♄︎ Saturn02:08 – 02:51
- 9♃︎ Jupiter02:51 – 03:33
- 10♂︎ Mars03:33 – 04:16
- 11☉︎ Sun04:16 – 04:58
- 12♀︎ Venus04:58 – 05:41
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Tuesday, 12 May 2026, the Sun rises at 05:43 and sets at 21:10: the day lasts 15h 28m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:41, lasts 8h 31m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Mars, from 05:43 to 07:00: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.