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 Tuesday, 30 December 2025: day of Mars
- Sunrise
- 08:38
- Sunset
- 16:16
- Next sunrise
- 08:38
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/Berlin).
Day
- 1♂︎ Mars08:38 – 09:16
- 2☉︎ Sun09:16 – 09:54
- 3♀︎ Venus09:54 – 10:33
- 4☿︎ Mercury10:33 – 11:11
- 5☽︎ Moon11:11 – 11:49
- 6♄︎ Saturn11:49 – 12:27
- 7♃︎ Jupiter12:27 – 13:05
- 8♂︎ Mars13:05 – 13:43
- 9☉︎ Sun13:43 – 14:21
- 10♀︎ Venus14:21 – 14:59
- 11☿︎ Mercury14:59 – 15:38
- 12☽︎ Moon15:38 – 16:16
Night
- 1♄︎ Saturn16:16 – 17:38
- 2♃︎ Jupiter17:38 – 18:59
- 3♂︎ Mars18:59 – 20:21
- 4☉︎ Sun20:21 – 21:43
- 5♀︎ Venus21:43 – 23:05
- 6☿︎ Mercury23:05 – 00:27
- 7☽︎ Moon00:27 – 01:49
- 8♄︎ Saturn01:49 – 03:11
- 9♃︎ Jupiter03:11 – 04:33
- 10♂︎ Mars04:33 – 05:54
- 11☉︎ Sun05:54 – 07:16
- 12♀︎ Venus07:16 – 08:38
Other cities · Germany
Questions
How are the planetary hours calculated in Bremen?
On Tuesday, 30 December 2025, the Sun rises at 08:38 and sets at 16:16: the day lasts 7h 38m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:38, lasts 16h 22m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mars, from 08:38 to 09:16: 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.