Planetary hours
in Birmingham.
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, 9 December 2025: day of Mars
- Sunrise
- 08:06
- Sunset
- 15:53
- Next sunrise
- 08:07
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/London).
Day
- 1♂︎ Mars08:06 – 08:45
- 2☉︎ Sun08:45 – 09:23
- 3♀︎ Venus09:23 – 10:02
- 4☿︎ Mercury10:02 – 10:41
- 5☽︎ Moon10:41 – 11:20
- 6♄︎ Saturn11:20 – 11:59
- 7♃︎ Jupiter11:59 – 12:38
- 8♂︎ Mars12:38 – 13:17
- 9☉︎ Sun13:17 – 13:56
- 10♀︎ Venus13:56 – 14:35
- 11☿︎ Mercury14:35 – 15:14
- 12☽︎ Moon15:14 – 15:53
Night
- 1♄︎ Saturn15:53 – 17:14
- 2♃︎ Jupiter17:14 – 18:36
- 3♂︎ Mars18:36 – 19:57
- 4☉︎ Sun19:57 – 21:18
- 5♀︎ Venus21:18 – 22:39
- 6☿︎ Mercury22:39 – 00:00
- 7☽︎ Moon00:00 – 01:21
- 8♄︎ Saturn01:21 – 02:42
- 9♃︎ Jupiter02:42 – 04:03
- 10♂︎ Mars04:03 – 05:24
- 11☉︎ Sun05:24 – 06:46
- 12♀︎ Venus06:46 – 08:07
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Birmingham?
On Tuesday, 9 December 2025, the Sun rises at 08:06 and sets at 15:53: the day lasts 7h 48m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:07, lasts 16h 13m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
Mars, from 08:06 to 08:45: 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.