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, 23 December 2025: day of Mars
- Sunrise
- 08:16
- Sunset
- 15:56
- Next sunrise
- 08:17
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/London).
Day
- 1♂︎ Mars08:16 – 08:55
- 2☉︎ Sun08:55 – 09:33
- 3♀︎ Venus09:33 – 10:11
- 4☿︎ Mercury10:11 – 10:50
- 5☽︎ Moon10:50 – 11:28
- 6♄︎ Saturn11:28 – 12:06
- 7♃︎ Jupiter12:06 – 12:45
- 8♂︎ Mars12:45 – 13:23
- 9☉︎ Sun13:23 – 14:01
- 10♀︎ Venus14:01 – 14:40
- 11☿︎ Mercury14:40 – 15:18
- 12☽︎ Moon15:18 – 15:56
Night
- 1♄︎ Saturn15:56 – 17:18
- 2♃︎ Jupiter17:18 – 18:40
- 3♂︎ Mars18:40 – 20:01
- 4☉︎ Sun20:01 – 21:23
- 5♀︎ Venus21:23 – 22:45
- 6☿︎ Mercury22:45 – 00:06
- 7☽︎ Moon00:06 – 01:28
- 8♄︎ Saturn01:28 – 02:50
- 9♃︎ Jupiter02:50 – 04:12
- 10♂︎ Mars04:12 – 05:33
- 11☉︎ Sun05:33 – 06:55
- 12♀︎ Venus06:55 – 08:17
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Birmingham?
On Tuesday, 23 December 2025, the Sun rises at 08:16 and sets at 15:56: the day lasts 7h 40m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:17, lasts 16h 21m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mars, from 08:16 to 08:55: 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.