Planetary hours
in Hannover.
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, 20 December 2025: day of Saturn
- Sunrise
- 08:28
- Sunset
- 16:09
- Next sunrise
- 08:28
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Berlin).
Day
- 1♄︎ Saturn08:28 – 09:06
- 2♃︎ Jupiter09:06 – 09:45
- 3♂︎ Mars09:45 – 10:23
- 4☉︎ Sun10:23 – 11:01
- 5♀︎ Venus11:01 – 11:40
- 6☿︎ Mercury11:40 – 12:18
- 7☽︎ Moon12:18 – 12:57
- 8♄︎ Saturn12:57 – 13:35
- 9♃︎ Jupiter13:35 – 14:13
- 10♂︎ Mars14:13 – 14:52
- 11☉︎ Sun14:52 – 15:30
- 12♀︎ Venus15:30 – 16:09
Night
- 1☿︎ Mercury16:09 – 17:30
- 2☽︎ Moon17:30 – 18:52
- 3♄︎ Saturn18:52 – 20:14
- 4♃︎ Jupiter20:14 – 21:35
- 5♂︎ Mars21:35 – 22:57
- 6☉︎ Sun22:57 – 00:19
- 7♀︎ Venus00:19 – 01:40
- 8☿︎ Mercury01:40 – 03:02
- 9☽︎ Moon03:02 – 04:23
- 10♄︎ Saturn04:23 – 05:45
- 11♃︎ Jupiter05:45 – 07:07
- 12♂︎ Mars07:07 – 08:28
Other cities · Germany
Questions
How are the planetary hours calculated in Hannover?
On Saturday, 20 December 2025, the Sun rises at 08:28 and sets at 16:09: the day lasts 7h 41m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:28, lasts 16h 20m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Saturn, from 08:28 to 09:06: 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.