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, 30 January 2026: day of Venus
- Sunrise
- 08:11
- Sunset
- 17:15
- Next sunrise
- 08:10
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Berlin).
Day
- 1♀︎ Venus08:11 – 08:56
- 2☿︎ Mercury08:56 – 09:42
- 3☽︎ Moon09:42 – 10:27
- 4♄︎ Saturn10:27 – 11:12
- 5♃︎ Jupiter11:12 – 11:58
- 6♂︎ Mars11:58 – 12:43
- 7☉︎ Sun12:43 – 13:29
- 8♀︎ Venus13:29 – 14:14
- 9☿︎ Mercury14:14 – 14:59
- 10☽︎ Moon14:59 – 15:45
- 11♄︎ Saturn15:45 – 16:30
- 12♃︎ Jupiter16:30 – 17:15
Night
- 1♂︎ Mars17:15 – 18:30
- 2☉︎ Sun18:30 – 19:44
- 3♀︎ Venus19:44 – 20:59
- 4☿︎ Mercury20:59 – 22:13
- 5☽︎ Moon22:13 – 23:28
- 6♄︎ Saturn23:28 – 00:42
- 7♃︎ Jupiter00:42 – 01:57
- 8♂︎ Mars01:57 – 03:11
- 9☉︎ Sun03:11 – 04:26
- 10♀︎ Venus04:26 – 05:40
- 11☿︎ Mercury05:40 – 06:55
- 12☽︎ Moon06:55 – 08:10
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Friday, 30 January 2026, the Sun rises at 08:11 and sets at 17:15: the day lasts 9h 04m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:10, lasts 14h 54m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Venus, from 08:11 to 08:56: 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.