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 Sunday, 12 April 2026: day of the Sun
- Sunrise
- 06:41
- Sunset
- 20:21
- Next sunrise
- 06:38
A day hour lasts 1h 08m; a night hour, 51 min. Local time (Europe/Berlin).
Day
- 1☉︎ Sun06:41 – 07:49
- 2♀︎ Venus07:49 – 08:57
- 3☿︎ Mercury08:57 – 10:06
- 4☽︎ Moon10:06 – 11:14
- 5♄︎ Saturn11:14 – 12:23
- 6♃︎ Jupiter12:23 – 13:31
- 7♂︎ Mars13:31 – 14:39
- 8☉︎ Sun14:39 – 15:48
- 9♀︎ Venus15:48 – 16:56
- 10☿︎ Mercury16:56 – 18:04
- 11☽︎ Moon18:04 – 19:13
- 12♄︎ Saturn19:13 – 20:21
Night
- 1♃︎ Jupiter20:21 – 21:13
- 2♂︎ Mars21:13 – 22:04
- 3☉︎ Sun22:04 – 22:56
- 4♀︎ Venus22:56 – 23:47
- 5☿︎ Mercury23:47 – 00:38
- 6☽︎ Moon00:38 – 01:30
- 7♄︎ Saturn01:30 – 02:21
- 8♃︎ Jupiter02:21 – 03:13
- 9♂︎ Mars03:13 – 04:04
- 10☉︎ Sun04:04 – 04:56
- 11♀︎ Venus04:56 – 05:47
- 12☿︎ Mercury05:47 – 06:38
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Sunday, 12 April 2026, the Sun rises at 06:41 and sets at 20:21: the day lasts 13h 41m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 06:38, lasts 10h 17m: twelve night hours of 51 min.
Which planet rules the first hour that day?
The Sun, from 06:41 to 07:49: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.