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 Wednesday, 30 July 2025: day of Mercury
- Sunrise
- 05:51
- Sunset
- 21:21
- Next sunrise
- 05:52
A day hour lasts 1h 18m; a night hour, 43 min. Local time (Europe/Berlin).
Day
- 1☿︎ Mercury05:51 – 07:08
- 2☽︎ Moon07:08 – 08:26
- 3♄︎ Saturn08:26 – 09:43
- 4♃︎ Jupiter09:43 – 11:01
- 5♂︎ Mars11:01 – 12:18
- 6☉︎ Sun12:18 – 13:36
- 7♀︎ Venus13:36 – 14:53
- 8☿︎ Mercury14:53 – 16:11
- 9☽︎ Moon16:11 – 17:28
- 10♄︎ Saturn17:28 – 18:46
- 11♃︎ Jupiter18:46 – 20:03
- 12♂︎ Mars20:03 – 21:21
Night
- 1☉︎ Sun21:21 – 22:03
- 2♀︎ Venus22:03 – 22:46
- 3☿︎ Mercury22:46 – 23:28
- 4☽︎ Moon23:28 – 00:11
- 5♄︎ Saturn00:11 – 00:54
- 6♃︎ Jupiter00:54 – 01:36
- 7♂︎ Mars01:36 – 02:19
- 8☉︎ Sun02:19 – 03:02
- 9♀︎ Venus03:02 – 03:44
- 10☿︎ Mercury03:44 – 04:27
- 11☽︎ Moon04:27 – 05:09
- 12♄︎ Saturn05:09 – 05:52
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Wednesday, 30 July 2025, the Sun rises at 05:51 and sets at 21:21: the day lasts 15h 30m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:52, lasts 8h 31m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Mercury, from 05:51 to 07:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.