Planetary hours
in Cologne.
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, 20 December 2026: day of the Sun
- Sunrise
- 08:31
- Sunset
- 16:27
- Next sunrise
- 08:32
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Berlin).
Day
- 1☉︎ Sun08:31 – 09:11
- 2♀︎ Venus09:11 – 09:51
- 3☿︎ Mercury09:51 – 10:30
- 4☽︎ Moon10:30 – 11:10
- 5♄︎ Saturn11:10 – 11:50
- 6♃︎ Jupiter11:50 – 12:29
- 7♂︎ Mars12:29 – 13:09
- 8☉︎ Sun13:09 – 13:49
- 9♀︎ Venus13:49 – 14:28
- 10☿︎ Mercury14:28 – 15:08
- 11☽︎ Moon15:08 – 15:47
- 12♄︎ Saturn15:47 – 16:27
Night
- 1♃︎ Jupiter16:27 – 17:47
- 2♂︎ Mars17:47 – 19:08
- 3☉︎ Sun19:08 – 20:28
- 4♀︎ Venus20:28 – 21:49
- 5☿︎ Mercury21:49 – 23:09
- 6☽︎ Moon23:09 – 00:30
- 7♄︎ Saturn00:30 – 01:50
- 8♃︎ Jupiter01:50 – 03:10
- 9♂︎ Mars03:10 – 04:31
- 10☉︎ Sun04:31 – 05:51
- 11♀︎ Venus05:51 – 07:12
- 12☿︎ Mercury07:12 – 08:32
Other cities · Germany
Questions
How are the planetary hours calculated in Cologne?
On Sunday, 20 December 2026, the Sun rises at 08:31 and sets at 16:27: the day lasts 7h 56m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:32, lasts 16h 05m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
The Sun, from 08:31 to 09:11: 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.