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 Friday, 18 July 2025: day of Venus
- Sunrise
- 05:34
- Sunset
- 21:37
- Next sunrise
- 05:35
A day hour lasts 1h 20m; a night hour, 40 min. Local time (Europe/Berlin).
Day
- 1♀︎ Venus05:34 – 06:54
- 2☿︎ Mercury06:54 – 08:14
- 3☽︎ Moon08:14 – 09:35
- 4♄︎ Saturn09:35 – 10:55
- 5♃︎ Jupiter10:55 – 12:15
- 6♂︎ Mars12:15 – 13:36
- 7☉︎ Sun13:36 – 14:56
- 8♀︎ Venus14:56 – 16:16
- 9☿︎ Mercury16:16 – 17:36
- 10☽︎ Moon17:36 – 18:57
- 11♄︎ Saturn18:57 – 20:17
- 12♃︎ Jupiter20:17 – 21:37
Night
- 1♂︎ Mars21:37 – 22:17
- 2☉︎ Sun22:17 – 22:57
- 3♀︎ Venus22:57 – 23:37
- 4☿︎ Mercury23:37 – 00:16
- 5☽︎ Moon00:16 – 00:56
- 6♄︎ Saturn00:56 – 01:36
- 7♃︎ Jupiter01:36 – 02:16
- 8♂︎ Mars02:16 – 02:56
- 9☉︎ Sun02:56 – 03:36
- 10♀︎ Venus03:36 – 04:16
- 11☿︎ Mercury04:16 – 04:55
- 12☽︎ Moon04:55 – 05:35
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Friday, 18 July 2025, the Sun rises at 05:34 and sets at 21:37: the day lasts 16h 03m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 05:35, lasts 7h 58m: twelve night hours of 40 min.
Which planet rules the first hour that day?
Venus, from 05:34 to 06:54: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.