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 Saturday, 12 December 2026: day of Saturn
- Sunrise
- 08:25
- Sunset
- 16:25
- Next sunrise
- 08:26
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Berlin).
Day
- 1♄︎ Saturn08:25 – 09:05
- 2♃︎ Jupiter09:05 – 09:45
- 3♂︎ Mars09:45 – 10:25
- 4☉︎ Sun10:25 – 11:05
- 5♀︎ Venus11:05 – 11:45
- 6☿︎ Mercury11:45 – 12:25
- 7☽︎ Moon12:25 – 13:05
- 8♄︎ Saturn13:05 – 13:45
- 9♃︎ Jupiter13:45 – 14:25
- 10♂︎ Mars14:25 – 15:05
- 11☉︎ Sun15:05 – 15:45
- 12♀︎ Venus15:45 – 16:25
Night
- 1☿︎ Mercury16:25 – 17:45
- 2☽︎ Moon17:45 – 19:05
- 3♄︎ Saturn19:05 – 20:26
- 4♃︎ Jupiter20:26 – 21:46
- 5♂︎ Mars21:46 – 23:06
- 6☉︎ Sun23:06 – 00:26
- 7♀︎ Venus00:26 – 01:46
- 8☿︎ Mercury01:46 – 03:06
- 9☽︎ Moon03:06 – 04:26
- 10♄︎ Saturn04:26 – 05:46
- 11♃︎ Jupiter05:46 – 07:06
- 12♂︎ Mars07:06 – 08:26
Other cities · Germany
Questions
How are the planetary hours calculated in Cologne?
On Saturday, 12 December 2026, the Sun rises at 08:25 and sets at 16:25: the day lasts 8h 00m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:26, lasts 16h 01m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Saturn, from 08:25 to 09:05: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.