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 May 2026: day of the Moon
- Sunrise
- 05:34
- Sunset
- 21:19
- Next sunrise
- 05:32
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Berlin).
Day
- 1☽︎ Moon05:34 – 06:52
- 2♄︎ Saturn06:52 – 08:11
- 3♃︎ Jupiter08:11 – 09:30
- 4♂︎ Mars09:30 – 10:49
- 5☉︎ Sun10:49 – 12:08
- 6♀︎ Venus12:08 – 13:27
- 7☿︎ Mercury13:27 – 14:45
- 8☽︎ Moon14:45 – 16:04
- 9♄︎ Saturn16:04 – 17:23
- 10♃︎ Jupiter17:23 – 18:42
- 11♂︎ Mars18:42 – 20:01
- 12☉︎ Sun20:01 – 21:19
Night
- 1♀︎ Venus21:19 – 22:01
- 2☿︎ Mercury22:01 – 22:42
- 3☽︎ Moon22:42 – 23:23
- 4♄︎ Saturn23:23 – 00:04
- 5♃︎ Jupiter00:04 – 00:45
- 6♂︎ Mars00:45 – 01:26
- 7☉︎ Sun01:26 – 02:07
- 8♀︎ Venus02:07 – 02:48
- 9☿︎ Mercury02:48 – 03:29
- 10☽︎ Moon03:29 – 04:10
- 11♄︎ Saturn04:10 – 04:51
- 12♃︎ Jupiter04:51 – 05:32
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Monday, 18 May 2026, the Sun rises at 05:34 and sets at 21:19: the day lasts 15h 46m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:32, lasts 8h 13m: twelve night hours of 41 min.
Which planet rules the first hour that day?
The Moon, from 05:34 to 06:52: 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.