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, 16 December 2025: day of Mars
- Sunrise
- 08:12
- Sunset
- 15:53
- Next sunrise
- 08:13
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/London).
Day
- 1♂︎ Mars08:12 – 08:51
- 2☉︎ Sun08:51 – 09:29
- 3♀︎ Venus09:29 – 10:08
- 4☿︎ Mercury10:08 – 10:46
- 5☽︎ Moon10:46 – 11:24
- 6♄︎ Saturn11:24 – 12:03
- 7♃︎ Jupiter12:03 – 12:41
- 8♂︎ Mars12:41 – 13:20
- 9☉︎ Sun13:20 – 13:58
- 10♀︎ Venus13:58 – 14:36
- 11☿︎ Mercury14:36 – 15:15
- 12☽︎ Moon15:15 – 15:53
Night
- 1♄︎ Saturn15:53 – 17:15
- 2♃︎ Jupiter17:15 – 18:37
- 3♂︎ Mars18:37 – 19:58
- 4☉︎ Sun19:58 – 21:20
- 5♀︎ Venus21:20 – 22:42
- 6☿︎ Mercury22:42 – 00:03
- 7☽︎ Moon00:03 – 01:25
- 8♄︎ Saturn01:25 – 02:46
- 9♃︎ Jupiter02:46 – 04:08
- 10♂︎ Mars04:08 – 05:30
- 11☉︎ Sun05:30 – 06:51
- 12♀︎ Venus06:51 – 08:13
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Birmingham?
On Tuesday, 16 December 2025, the Sun rises at 08:12 and sets at 15:53: the day lasts 7h 41m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:13, lasts 16h 20m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mars, from 08:12 to 08:51: 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.