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, 4 December 2026: day of Venus
- Sunrise
- 08:17
- Sunset
- 16:22
- Next sunrise
- 08:18
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Berlin).
Day
- 1♀︎ Venus08:17 – 08:57
- 2☿︎ Mercury08:57 – 09:38
- 3☽︎ Moon09:38 – 10:18
- 4♄︎ Saturn10:18 – 10:59
- 5♃︎ Jupiter10:59 – 11:39
- 6♂︎ Mars11:39 – 12:20
- 7☉︎ Sun12:20 – 13:00
- 8♀︎ Venus13:00 – 13:41
- 9☿︎ Mercury13:41 – 14:21
- 10☽︎ Moon14:21 – 15:02
- 11♄︎ Saturn15:02 – 15:42
- 12♃︎ Jupiter15:42 – 16:22
Night
- 1♂︎ Mars16:22 – 17:42
- 2☉︎ Sun17:42 – 19:02
- 3♀︎ Venus19:02 – 20:21
- 4☿︎ Mercury20:21 – 21:41
- 5☽︎ Moon21:41 – 23:01
- 6♄︎ Saturn23:01 – 00:20
- 7♃︎ Jupiter00:20 – 01:40
- 8♂︎ Mars01:40 – 03:00
- 9☉︎ Sun03:00 – 04:19
- 10♀︎ Venus04:19 – 05:39
- 11☿︎ Mercury05:39 – 06:58
- 12☽︎ Moon06:58 – 08:18
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Friday, 4 December 2026, the Sun rises at 08:17 and sets at 16:22: the day lasts 8h 06m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:18, lasts 15h 56m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Venus, from 08:17 to 08:57: 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.