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 Saturday, 17 May 2025: day of Saturn
- Sunrise
- 05:35
- Sunset
- 21:18
- Next sunrise
- 05:33
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Berlin).
Day
- 1♄︎ Saturn05:35 – 06:53
- 2♃︎ Jupiter06:53 – 08:12
- 3♂︎ Mars08:12 – 09:31
- 4☉︎ Sun09:31 – 10:49
- 5♀︎ Venus10:49 – 12:08
- 6☿︎ Mercury12:08 – 13:27
- 7☽︎ Moon13:27 – 14:45
- 8♄︎ Saturn14:45 – 16:04
- 9♃︎ Jupiter16:04 – 17:22
- 10♂︎ Mars17:22 – 18:41
- 11☉︎ Sun18:41 – 20:00
- 12♀︎ Venus20:00 – 21:18
Night
- 1☿︎ Mercury21:18 – 22:00
- 2☽︎ Moon22:00 – 22:41
- 3♄︎ Saturn22:41 – 23:22
- 4♃︎ Jupiter23:22 – 00:03
- 5♂︎ Mars00:03 – 00:45
- 6☉︎ Sun00:45 – 01:26
- 7♀︎ Venus01:26 – 02:07
- 8☿︎ Mercury02:07 – 02:48
- 9☽︎ Moon02:48 – 03:30
- 10♄︎ Saturn03:30 – 04:11
- 11♃︎ Jupiter04:11 – 04:52
- 12♂︎ Mars04:52 – 05:33
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Saturday, 17 May 2025, the Sun rises at 05:35 and sets at 21:18: the day lasts 15h 44m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:33, lasts 8h 15m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Saturn, from 05:35 to 06:53: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.