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 Wednesday, 20 May 2026: day of Mercury
- Sunrise
- 05:31
- Sunset
- 21:22
- Next sunrise
- 05:30
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Berlin).
Day
- 1☿︎ Mercury05:31 – 06:50
- 2☽︎ Moon06:50 – 08:10
- 3♄︎ Saturn08:10 – 09:29
- 4♃︎ Jupiter09:29 – 10:48
- 5♂︎ Mars10:48 – 12:07
- 6☉︎ Sun12:07 – 13:27
- 7♀︎ Venus13:27 – 14:46
- 8☿︎ Mercury14:46 – 16:05
- 9☽︎ Moon16:05 – 17:24
- 10♄︎ Saturn17:24 – 18:44
- 11♃︎ Jupiter18:44 – 20:03
- 12♂︎ Mars20:03 – 21:22
Night
- 1☉︎ Sun21:22 – 22:03
- 2♀︎ Venus22:03 – 22:44
- 3☿︎ Mercury22:44 – 23:24
- 4☽︎ Moon23:24 – 00:05
- 5♄︎ Saturn00:05 – 00:45
- 6♃︎ Jupiter00:45 – 01:26
- 7♂︎ Mars01:26 – 02:07
- 8☉︎ Sun02:07 – 02:47
- 9♀︎ Venus02:47 – 03:28
- 10☿︎ Mercury03:28 – 04:08
- 11☽︎ Moon04:08 – 04:49
- 12♄︎ Saturn04:49 – 05:30
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Wednesday, 20 May 2026, the Sun rises at 05:31 and sets at 21:22: the day lasts 15h 51m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:30, lasts 8h 07m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Mercury, from 05:31 to 06:50: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.