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, 23 September 2025: day of Mars
- Sunrise
- 07:18
- Sunset
- 19:25
- Next sunrise
- 07:19
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Europe/Berlin).
Day
- 1♂︎ Mars07:18 – 08:18
- 2☉︎ Sun08:18 – 09:19
- 3♀︎ Venus09:19 – 10:19
- 4☿︎ Mercury10:19 – 11:20
- 5☽︎ Moon11:20 – 12:21
- 6♄︎ Saturn12:21 – 13:21
- 7♃︎ Jupiter13:21 – 14:22
- 8♂︎ Mars14:22 – 15:23
- 9☉︎ Sun15:23 – 16:23
- 10♀︎ Venus16:23 – 17:24
- 11☿︎ Mercury17:24 – 18:25
- 12☽︎ Moon18:25 – 19:25
Night
- 1♄︎ Saturn19:25 – 20:25
- 2♃︎ Jupiter20:25 – 21:24
- 3♂︎ Mars21:24 – 22:24
- 4☉︎ Sun22:24 – 23:23
- 5♀︎ Venus23:23 – 00:23
- 6☿︎ Mercury00:23 – 01:22
- 7☽︎ Moon01:22 – 02:22
- 8♄︎ Saturn02:22 – 03:21
- 9♃︎ Jupiter03:21 – 04:21
- 10♂︎ Mars04:21 – 05:20
- 11☉︎ Sun05:20 – 06:20
- 12♀︎ Venus06:20 – 07:19
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Tuesday, 23 September 2025, the Sun rises at 07:18 and sets at 19:25: the day lasts 12h 08m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 07:19, lasts 11h 54m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Mars, from 07:18 to 08:18: 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.