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, 2 January 2026: day of Venus
- Sunrise
- 08:35
- Sunset
- 16:32
- Next sunrise
- 08:35
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Berlin).
Day
- 1♀︎ Venus08:35 – 09:15
- 2☿︎ Mercury09:15 – 09:55
- 3☽︎ Moon09:55 – 10:34
- 4♄︎ Saturn10:34 – 11:14
- 5♃︎ Jupiter11:14 – 11:54
- 6♂︎ Mars11:54 – 12:34
- 7☉︎ Sun12:34 – 13:14
- 8♀︎ Venus13:14 – 13:53
- 9☿︎ Mercury13:53 – 14:33
- 10☽︎ Moon14:33 – 15:13
- 11♄︎ Saturn15:13 – 15:53
- 12♃︎ Jupiter15:53 – 16:32
Night
- 1♂︎ Mars16:32 – 17:53
- 2☉︎ Sun17:53 – 19:13
- 3♀︎ Venus19:13 – 20:33
- 4☿︎ Mercury20:33 – 21:53
- 5☽︎ Moon21:53 – 23:13
- 6♄︎ Saturn23:13 – 00:34
- 7♃︎ Jupiter00:34 – 01:54
- 8♂︎ Mars01:54 – 03:14
- 9☉︎ Sun03:14 – 04:34
- 10♀︎ Venus04:34 – 05:55
- 11☿︎ Mercury05:55 – 07:15
- 12☽︎ Moon07:15 – 08:35
Other cities · Germany
Questions
How are the planetary hours calculated in Dortmund?
On Friday, 2 January 2026, the Sun rises at 08:35 and sets at 16:32: the day lasts 7h 57m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:35, lasts 16h 03m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Venus, from 08:35 to 09:15: 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.