Planetary hours
in Bremen.
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 Friday, 12 December 2025: day of Venus
- Sunrise
- 08:29
- Sunset
- 16:07
- Next sunrise
- 08:30
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Berlin).
Day
- 1♀︎ Venus08:29 – 09:07
- 2☿︎ Mercury09:07 – 09:45
- 3☽︎ Moon09:45 – 10:24
- 4♄︎ Saturn10:24 – 11:02
- 5♃︎ Jupiter11:02 – 11:40
- 6♂︎ Mars11:40 – 12:18
- 7☉︎ Sun12:18 – 12:56
- 8♀︎ Venus12:56 – 13:34
- 9☿︎ Mercury13:34 – 14:12
- 10☽︎ Moon14:12 – 14:51
- 11♄︎ Saturn14:51 – 15:29
- 12♃︎ Jupiter15:29 – 16:07
Night
- 1♂︎ Mars16:07 – 17:29
- 2☉︎ Sun17:29 – 18:51
- 3♀︎ Venus18:51 – 20:13
- 4☿︎ Mercury20:13 – 21:35
- 5☽︎ Moon21:35 – 22:57
- 6♄︎ Saturn22:57 – 00:18
- 7♃︎ Jupiter00:18 – 01:40
- 8♂︎ Mars01:40 – 03:02
- 9☉︎ Sun03:02 – 04:24
- 10♀︎ Venus04:24 – 05:46
- 11☿︎ Mercury05:46 – 07:08
- 12☽︎ Moon07:08 – 08:30
Other cities · Germany
Questions
How are the planetary hours calculated in Bremen?
On Friday, 12 December 2025, the Sun rises at 08:29 and sets at 16:07: the day lasts 7h 38m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:30, lasts 16h 23m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Venus, from 08:29 to 09:07: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.