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, 31 July 2026: day of Venus
- Sunrise
- 05:52
- Sunset
- 21:19
- Next sunrise
- 05:53
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Berlin).
Day
- 1♀︎ Venus05:52 – 07:09
- 2☿︎ Mercury07:09 – 08:26
- 3☽︎ Moon08:26 – 09:44
- 4♄︎ Saturn09:44 – 11:01
- 5♃︎ Jupiter11:01 – 12:18
- 6♂︎ Mars12:18 – 13:36
- 7☉︎ Sun13:36 – 14:53
- 8♀︎ Venus14:53 – 16:10
- 9☿︎ Mercury16:10 – 17:27
- 10☽︎ Moon17:27 – 18:45
- 11♄︎ Saturn18:45 – 20:02
- 12♃︎ Jupiter20:02 – 21:19
Night
- 1♂︎ Mars21:19 – 22:02
- 2☉︎ Sun22:02 – 22:45
- 3♀︎ Venus22:45 – 23:28
- 4☿︎ Mercury23:28 – 00:11
- 5☽︎ Moon00:11 – 00:53
- 6♄︎ Saturn00:53 – 01:36
- 7♃︎ Jupiter01:36 – 02:19
- 8♂︎ Mars02:19 – 03:02
- 9☉︎ Sun03:02 – 03:45
- 10♀︎ Venus03:45 – 04:28
- 11☿︎ Mercury04:28 – 05:10
- 12☽︎ Moon05:10 – 05:53
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Friday, 31 July 2026, the Sun rises at 05:52 and sets at 21:19: the day lasts 15h 28m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:53, lasts 8h 34m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Venus, from 05:52 to 07:09: 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.