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, 9 January 2026: day of Venus
- Sunrise
- 08:33
- Sunset
- 16:41
- Next sunrise
- 08:32
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Berlin).
Day
- 1♀︎ Venus08:33 – 09:13
- 2☿︎ Mercury09:13 – 09:54
- 3☽︎ Moon09:54 – 10:35
- 4♄︎ Saturn10:35 – 11:15
- 5♃︎ Jupiter11:15 – 11:56
- 6♂︎ Mars11:56 – 12:37
- 7☉︎ Sun12:37 – 13:18
- 8♀︎ Venus13:18 – 13:58
- 9☿︎ Mercury13:58 – 14:39
- 10☽︎ Moon14:39 – 15:20
- 11♄︎ Saturn15:20 – 16:00
- 12♃︎ Jupiter16:00 – 16:41
Night
- 1♂︎ Mars16:41 – 18:00
- 2☉︎ Sun18:00 – 19:20
- 3♀︎ Venus19:20 – 20:39
- 4☿︎ Mercury20:39 – 21:58
- 5☽︎ Moon21:58 – 23:17
- 6♄︎ Saturn23:17 – 00:37
- 7♃︎ Jupiter00:37 – 01:56
- 8♂︎ Mars01:56 – 03:15
- 9☉︎ Sun03:15 – 04:34
- 10♀︎ Venus04:34 – 05:54
- 11☿︎ Mercury05:54 – 07:13
- 12☽︎ Moon07:13 – 08:32
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Friday, 9 January 2026, the Sun rises at 08:33 and sets at 16:41: the day lasts 8h 08m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:32, lasts 15h 51m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Venus, from 08:33 to 09:13: 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.