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 September 2026: day of Venus
- Sunrise
- 07:09
- Sunset
- 19:37
- Next sunrise
- 07:11
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Berlin).
Day
- 1♀︎ Venus07:09 – 08:11
- 2☿︎ Mercury08:11 – 09:14
- 3☽︎ Moon09:14 – 10:16
- 4♄︎ Saturn10:16 – 11:19
- 5♃︎ Jupiter11:19 – 12:21
- 6♂︎ Mars12:21 – 13:23
- 7☉︎ Sun13:23 – 14:26
- 8♀︎ Venus14:26 – 15:28
- 9☿︎ Mercury15:28 – 16:30
- 10☽︎ Moon16:30 – 17:33
- 11♄︎ Saturn17:33 – 18:35
- 12♃︎ Jupiter18:35 – 19:37
Night
- 1♂︎ Mars19:37 – 20:35
- 2☉︎ Sun20:35 – 21:33
- 3♀︎ Venus21:33 – 22:31
- 4☿︎ Mercury22:31 – 23:28
- 5☽︎ Moon23:28 – 00:26
- 6♄︎ Saturn00:26 – 01:24
- 7♃︎ Jupiter01:24 – 02:22
- 8♂︎ Mars02:22 – 03:20
- 9☉︎ Sun03:20 – 04:17
- 10♀︎ Venus04:17 – 05:15
- 11☿︎ Mercury05:15 – 06:13
- 12☽︎ Moon06:13 – 07:11
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Friday, 18 September 2026, the Sun rises at 07:09 and sets at 19:37: the day lasts 12h 28m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:11, lasts 11h 33m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Venus, from 07:09 to 08:11: 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.