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 Friday, 26 December 2025: day of Venus
- Sunrise
- 08:35
- Sunset
- 16:26
- Next sunrise
- 08:35
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/Berlin).
Day
- 1♀︎ Venus08:35 – 09:14
- 2☿︎ Mercury09:14 – 09:53
- 3☽︎ Moon09:53 – 10:33
- 4♄︎ Saturn10:33 – 11:12
- 5♃︎ Jupiter11:12 – 11:51
- 6♂︎ Mars11:51 – 12:30
- 7☉︎ Sun12:30 – 13:10
- 8♀︎ Venus13:10 – 13:49
- 9☿︎ Mercury13:49 – 14:28
- 10☽︎ Moon14:28 – 15:07
- 11♄︎ Saturn15:07 – 15:47
- 12♃︎ Jupiter15:47 – 16:26
Night
- 1♂︎ Mars16:26 – 17:47
- 2☉︎ Sun17:47 – 19:07
- 3♀︎ Venus19:07 – 20:28
- 4☿︎ Mercury20:28 – 21:49
- 5☽︎ Moon21:49 – 23:10
- 6♄︎ Saturn23:10 – 00:30
- 7♃︎ Jupiter00:30 – 01:51
- 8♂︎ Mars01:51 – 03:12
- 9☉︎ Sun03:12 – 04:33
- 10♀︎ Venus04:33 – 05:54
- 11☿︎ Mercury05:54 – 07:14
- 12☽︎ Moon07:14 – 08:35
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Friday, 26 December 2025, the Sun rises at 08:35 and sets at 16:26: the day lasts 7h 51m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:35, lasts 16h 09m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
Venus, from 08:35 to 09:14: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.