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, 16 August 2025: day of Saturn
- Sunrise
- 06:21
- Sunset
- 20:50
- Next sunrise
- 06:22
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Europe/Berlin).
Day
- 1♄︎ Saturn06:21 – 07:33
- 2♃︎ Jupiter07:33 – 08:46
- 3♂︎ Mars08:46 – 09:58
- 4☉︎ Sun09:58 – 11:10
- 5♀︎ Venus11:10 – 12:23
- 6☿︎ Mercury12:23 – 13:35
- 7☽︎ Moon13:35 – 14:48
- 8♄︎ Saturn14:48 – 16:00
- 9♃︎ Jupiter16:00 – 17:13
- 10♂︎ Mars17:13 – 18:25
- 11☉︎ Sun18:25 – 19:38
- 12♀︎ Venus19:38 – 20:50
Night
- 1☿︎ Mercury20:50 – 21:38
- 2☽︎ Moon21:38 – 22:26
- 3♄︎ Saturn22:26 – 23:13
- 4♃︎ Jupiter23:13 – 00:01
- 5♂︎ Mars00:01 – 00:49
- 6☉︎ Sun00:49 – 01:36
- 7♀︎ Venus01:36 – 02:24
- 8☿︎ Mercury02:24 – 03:12
- 9☽︎ Moon03:12 – 03:59
- 10♄︎ Saturn03:59 – 04:47
- 11♃︎ Jupiter04:47 – 05:34
- 12♂︎ Mars05:34 – 06:22
Other cities · Germany
Questions
How are the planetary hours calculated in Cologne?
On Saturday, 16 August 2025, the Sun rises at 06:21 and sets at 20:50: the day lasts 14h 30m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 06:22, lasts 9h 32m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Saturn, from 06:21 to 07:33: 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.