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 Tuesday, 13 January 2026: day of Mars
- Sunrise
- 08:30
- Sunset
- 16:47
- Next sunrise
- 08:29
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Berlin).
Day
- 1♂︎ Mars08:30 – 09:12
- 2☉︎ Sun09:12 – 09:53
- 3♀︎ Venus09:53 – 10:34
- 4☿︎ Mercury10:34 – 11:16
- 5☽︎ Moon11:16 – 11:57
- 6♄︎ Saturn11:57 – 12:38
- 7♃︎ Jupiter12:38 – 13:20
- 8♂︎ Mars13:20 – 14:01
- 9☉︎ Sun14:01 – 14:43
- 10♀︎ Venus14:43 – 15:24
- 11☿︎ Mercury15:24 – 16:05
- 12☽︎ Moon16:05 – 16:47
Night
- 1♄︎ Saturn16:47 – 18:05
- 2♃︎ Jupiter18:05 – 19:24
- 3♂︎ Mars19:24 – 20:42
- 4☉︎ Sun20:42 – 22:01
- 5♀︎ Venus22:01 – 23:20
- 6☿︎ Mercury23:20 – 00:38
- 7☽︎ Moon00:38 – 01:57
- 8♄︎ Saturn01:57 – 03:15
- 9♃︎ Jupiter03:15 – 04:34
- 10♂︎ Mars04:34 – 05:52
- 11☉︎ Sun05:52 – 07:11
- 12♀︎ Venus07:11 – 08:29
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Tuesday, 13 January 2026, the Sun rises at 08:30 and sets at 16:47: the day lasts 8h 17m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:29, lasts 15h 43m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mars, from 08:30 to 09:12: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.