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 Sunday, 21 December 2025: day of the Sun
- Sunrise
- 08:28
- Sunset
- 16:09
- Next sunrise
- 08:29
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Berlin).
Day
- 1☉︎ Sun08:28 – 09:07
- 2♀︎ Venus09:07 – 09:45
- 3☿︎ Mercury09:45 – 10:24
- 4☽︎ Moon10:24 – 11:02
- 5♄︎ Saturn11:02 – 11:40
- 6♃︎ Jupiter11:40 – 12:19
- 7♂︎ Mars12:19 – 12:57
- 8☉︎ Sun12:57 – 13:36
- 9♀︎ Venus13:36 – 14:14
- 10☿︎ Mercury14:14 – 14:52
- 11☽︎ Moon14:52 – 15:31
- 12♄︎ Saturn15:31 – 16:09
Night
- 1♃︎ Jupiter16:09 – 17:31
- 2♂︎ Mars17:31 – 18:52
- 3☉︎ Sun18:52 – 20:14
- 4♀︎ Venus20:14 – 21:36
- 5☿︎ Mercury21:36 – 22:57
- 6☽︎ Moon22:57 – 00:19
- 7♄︎ Saturn00:19 – 01:41
- 8♃︎ Jupiter01:41 – 03:02
- 9♂︎ Mars03:02 – 04:24
- 10☉︎ Sun04:24 – 05:46
- 11♀︎ Venus05:46 – 07:07
- 12☿︎ Mercury07:07 – 08:29
Other cities · Germany
Questions
How are the planetary hours calculated in Hannover?
On Sunday, 21 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 08:29, lasts 16h 20m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
The Sun, from 08:28 to 09:07: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.