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, 29 December 2025: day of the Moon
- Sunrise
- 08:35
- Sunset
- 16:28
- Next sunrise
- 08:35
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/Berlin).
Day
- 1☽︎ Moon08:35 – 09:15
- 2♄︎ Saturn09:15 – 09:54
- 3♃︎ Jupiter09:54 – 10:34
- 4♂︎ Mars10:34 – 11:13
- 5☉︎ Sun11:13 – 11:52
- 6♀︎ Venus11:52 – 12:32
- 7☿︎ Mercury12:32 – 13:11
- 8☽︎ Moon13:11 – 13:51
- 9♄︎ Saturn13:51 – 14:30
- 10♃︎ Jupiter14:30 – 15:09
- 11♂︎ Mars15:09 – 15:49
- 12☉︎ Sun15:49 – 16:28
Night
- 1♀︎ Venus16:28 – 17:49
- 2☿︎ Mercury17:49 – 19:09
- 3☽︎ Moon19:09 – 20:30
- 4♄︎ Saturn20:30 – 21:51
- 5♃︎ Jupiter21:51 – 23:11
- 6♂︎ Mars23:11 – 00:32
- 7☉︎ Sun00:32 – 01:52
- 8♀︎ Venus01:52 – 03:13
- 9☿︎ Mercury03:13 – 04:34
- 10☽︎ Moon04:34 – 05:54
- 11♄︎ Saturn05:54 – 07:15
- 12♃︎ Jupiter07:15 – 08:35
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Monday, 29 December 2025, the Sun rises at 08:35 and sets at 16:28: the day lasts 7h 53m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:35, lasts 16h 07m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
The Moon, from 08:35 to 09:15: 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.