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 Wednesday, 13 August 2025: day of Mercury
- Sunrise
- 06:16
- Sunset
- 20:56
- Next sunrise
- 06:18
A day hour lasts 1h 13m; a night hour, 47 min. Local time (Europe/Berlin).
Day
- 1☿︎ Mercury06:16 – 07:29
- 2☽︎ Moon07:29 – 08:43
- 3♄︎ Saturn08:43 – 09:56
- 4♃︎ Jupiter09:56 – 11:09
- 5♂︎ Mars11:09 – 12:23
- 6☉︎ Sun12:23 – 13:36
- 7♀︎ Venus13:36 – 14:49
- 8☿︎ Mercury14:49 – 16:03
- 9☽︎ Moon16:03 – 17:16
- 10♄︎ Saturn17:16 – 18:29
- 11♃︎ Jupiter18:29 – 19:43
- 12♂︎ Mars19:43 – 20:56
Night
- 1☉︎ Sun20:56 – 21:43
- 2♀︎ Venus21:43 – 22:30
- 3☿︎ Mercury22:30 – 23:16
- 4☽︎ Moon23:16 – 00:03
- 5♄︎ Saturn00:03 – 00:50
- 6♃︎ Jupiter00:50 – 01:37
- 7♂︎ Mars01:37 – 02:24
- 8☉︎ Sun02:24 – 03:10
- 9♀︎ Venus03:10 – 03:57
- 10☿︎ Mercury03:57 – 04:44
- 11☽︎ Moon04:44 – 05:31
- 12♄︎ Saturn05:31 – 06:18
Other cities · Germany
Questions
How are the planetary hours calculated in Cologne?
On Wednesday, 13 August 2025, the Sun rises at 06:16 and sets at 20:56: the day lasts 14h 40m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 06:18, lasts 9h 21m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Mercury, from 06:16 to 07:29: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.