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 Monday, 15 December 2025: day of the Moon
- Sunrise
- 08:28
- Sunset
- 16:26
- Next sunrise
- 08:29
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Berlin).
Day
- 1☽︎ Moon08:28 – 09:08
- 2♄︎ Saturn09:08 – 09:48
- 3♃︎ Jupiter09:48 – 10:28
- 4♂︎ Mars10:28 – 11:07
- 5☉︎ Sun11:07 – 11:47
- 6♀︎ Venus11:47 – 12:27
- 7☿︎ Mercury12:27 – 13:07
- 8☽︎ Moon13:07 – 13:46
- 9♄︎ Saturn13:46 – 14:26
- 10♃︎ Jupiter14:26 – 15:06
- 11♂︎ Mars15:06 – 15:46
- 12☉︎ Sun15:46 – 16:26
Night
- 1♀︎ Venus16:26 – 17:46
- 2☿︎ Mercury17:46 – 19:06
- 3☽︎ Moon19:06 – 20:26
- 4♄︎ Saturn20:26 – 21:47
- 5♃︎ Jupiter21:47 – 23:07
- 6♂︎ Mars23:07 – 00:27
- 7☉︎ Sun00:27 – 01:48
- 8♀︎ Venus01:48 – 03:08
- 9☿︎ Mercury03:08 – 04:28
- 10☽︎ Moon04:28 – 05:48
- 11♄︎ Saturn05:48 – 07:09
- 12♃︎ Jupiter07:09 – 08:29
Other cities · Germany
Questions
How are the planetary hours calculated in Cologne?
On Monday, 15 December 2025, the Sun rises at 08:28 and sets at 16:26: the day lasts 7h 57m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:29, lasts 16h 03m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
The Moon, from 08:28 to 09:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.