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 Tuesday, 16 December 2025: day of Mars
- Sunrise
- 08:25
- Sunset
- 16:07
- Next sunrise
- 08:26
A day hour lasts 39 min; a night hour, 1h 22m. Local time (Europe/Berlin).
Day
- 1♂︎ Mars08:25 – 09:04
- 2☉︎ Sun09:04 – 09:42
- 3♀︎ Venus09:42 – 10:21
- 4☿︎ Mercury10:21 – 10:59
- 5☽︎ Moon10:59 – 11:38
- 6♄︎ Saturn11:38 – 12:16
- 7♃︎ Jupiter12:16 – 12:55
- 8♂︎ Mars12:55 – 13:33
- 9☉︎ Sun13:33 – 14:12
- 10♀︎ Venus14:12 – 14:50
- 11☿︎ Mercury14:50 – 15:29
- 12☽︎ Moon15:29 – 16:07
Night
- 1♄︎ Saturn16:07 – 17:29
- 2♃︎ Jupiter17:29 – 18:50
- 3♂︎ Mars18:50 – 20:12
- 4☉︎ Sun20:12 – 21:34
- 5♀︎ Venus21:34 – 22:55
- 6☿︎ Mercury22:55 – 00:17
- 7☽︎ Moon00:17 – 01:38
- 8♄︎ Saturn01:38 – 03:00
- 9♃︎ Jupiter03:00 – 04:21
- 10♂︎ Mars04:21 – 05:43
- 11☉︎ Sun05:43 – 07:04
- 12♀︎ Venus07:04 – 08:26
Other cities · Germany
Questions
How are the planetary hours calculated in Hannover?
On Tuesday, 16 December 2025, the Sun rises at 08:25 and sets at 16:07: the day lasts 7h 42m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:26, lasts 16h 19m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mars, from 08:25 to 09:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.