Planetary hours
in Frankfurt am Main.
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, 10 December 2025: day of Mercury
- Sunrise
- 08:13
- Sunset
- 16:22
- Next sunrise
- 08:14
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Berlin).
Day
- 1☿︎ Mercury08:13 – 08:54
- 2☽︎ Moon08:54 – 09:34
- 3♄︎ Saturn09:34 – 10:15
- 4♃︎ Jupiter10:15 – 10:56
- 5♂︎ Mars10:56 – 11:37
- 6☉︎ Sun11:37 – 12:18
- 7♀︎ Venus12:18 – 12:58
- 8☿︎ Mercury12:58 – 13:39
- 9☽︎ Moon13:39 – 14:20
- 10♄︎ Saturn14:20 – 15:01
- 11♃︎ Jupiter15:01 – 15:42
- 12♂︎ Mars15:42 – 16:22
Night
- 1☉︎ Sun16:22 – 17:42
- 2♀︎ Venus17:42 – 19:01
- 3☿︎ Mercury19:01 – 20:20
- 4☽︎ Moon20:20 – 21:39
- 5♄︎ Saturn21:39 – 22:59
- 6♃︎ Jupiter22:59 – 00:18
- 7♂︎ Mars00:18 – 01:37
- 8☉︎ Sun01:37 – 02:57
- 9♀︎ Venus02:57 – 04:16
- 10☿︎ Mercury04:16 – 05:35
- 11☽︎ Moon05:35 – 06:54
- 12♄︎ Saturn06:54 – 08:14
Other cities · Germany
Questions
How are the planetary hours calculated in Frankfurt am Main?
On Wednesday, 10 December 2025, the Sun rises at 08:13 and sets at 16:22: the day lasts 8h 10m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:14, lasts 15h 51m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mercury, from 08:13 to 08:54: 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.