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 Thursday, 3 September 2026: day of Jupiter
- Sunrise
- 06:45
- Sunset
- 20:12
- Next sunrise
- 06:47
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Europe/Berlin).
Day
- 1♃︎ Jupiter06:45 – 07:52
- 2♂︎ Mars07:52 – 09:00
- 3☉︎ Sun09:00 – 10:07
- 4♀︎ Venus10:07 – 11:14
- 5☿︎ Mercury11:14 – 12:21
- 6☽︎ Moon12:21 – 13:28
- 7♄︎ Saturn13:28 – 14:36
- 8♃︎ Jupiter14:36 – 15:43
- 9♂︎ Mars15:43 – 16:50
- 10☉︎ Sun16:50 – 17:57
- 11♀︎ Venus17:57 – 19:04
- 12☿︎ Mercury19:04 – 20:12
Night
- 1☽︎ Moon20:12 – 21:05
- 2♄︎ Saturn21:05 – 21:58
- 3♃︎ Jupiter21:58 – 22:50
- 4♂︎ Mars22:50 – 23:43
- 5☉︎ Sun23:43 – 00:36
- 6♀︎ Venus00:36 – 01:29
- 7☿︎ Mercury01:29 – 02:22
- 8☽︎ Moon02:22 – 03:15
- 9♄︎ Saturn03:15 – 04:08
- 10♃︎ Jupiter04:08 – 05:01
- 11♂︎ Mars05:01 – 05:54
- 12☉︎ Sun05:54 – 06:47
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Thursday, 3 September 2026, the Sun rises at 06:45 and sets at 20:12: the day lasts 13h 26m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 06:47, lasts 10h 35m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Jupiter, from 06:45 to 07:52: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.