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 Monday, 21 December 2026: day of the Moon
- Sunrise
- 08:33
- Sunset
- 16:23
- Next sunrise
- 08:33
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/Berlin).
Day
- 1☽︎ Moon08:33 – 09:12
- 2♄︎ Saturn09:12 – 09:51
- 3♃︎ Jupiter09:51 – 10:30
- 4♂︎ Mars10:30 – 11:09
- 5☉︎ Sun11:09 – 11:49
- 6♀︎ Venus11:49 – 12:28
- 7☿︎ Mercury12:28 – 13:07
- 8☽︎ Moon13:07 – 13:46
- 9♄︎ Saturn13:46 – 14:25
- 10♃︎ Jupiter14:25 – 15:04
- 11♂︎ Mars15:04 – 15:43
- 12☉︎ Sun15:43 – 16:23
Night
- 1♀︎ Venus16:23 – 17:43
- 2☿︎ Mercury17:43 – 19:04
- 3☽︎ Moon19:04 – 20:25
- 4♄︎ Saturn20:25 – 21:46
- 5♃︎ Jupiter21:46 – 23:07
- 6♂︎ Mars23:07 – 00:28
- 7☉︎ Sun00:28 – 01:49
- 8♀︎ Venus01:49 – 03:10
- 9☿︎ Mercury03:10 – 04:31
- 10☽︎ Moon04:31 – 05:52
- 11♄︎ Saturn05:52 – 07:12
- 12♃︎ Jupiter07:12 – 08:33
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Monday, 21 December 2026, the Sun rises at 08:33 and sets at 16:23: the day lasts 7h 50m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:33, lasts 16h 11m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
The Moon, from 08:33 to 09:12: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.