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 Monday, 21 December 2026: day of the Moon
- Sunrise
- 08:15
- Sunset
- 15:55
- Next sunrise
- 08:16
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/London).
Day
- 1☽︎ Moon08:15 – 08:54
- 2♄︎ Saturn08:54 – 09:32
- 3♃︎ Jupiter09:32 – 10:10
- 4♂︎ Mars10:10 – 10:49
- 5☉︎ Sun10:49 – 11:27
- 6♀︎ Venus11:27 – 12:05
- 7☿︎ Mercury12:05 – 12:43
- 8☽︎ Moon12:43 – 13:22
- 9♄︎ Saturn13:22 – 14:00
- 10♃︎ Jupiter14:00 – 14:38
- 11♂︎ Mars14:38 – 15:17
- 12☉︎ Sun15:17 – 15:55
Night
- 1♀︎ Venus15:55 – 17:17
- 2☿︎ Mercury17:17 – 18:38
- 3☽︎ Moon18:38 – 20:00
- 4♄︎ Saturn20:00 – 21:22
- 5♃︎ Jupiter21:22 – 22:44
- 6♂︎ Mars22:44 – 00:05
- 7☉︎ Sun00:05 – 01:27
- 8♀︎ Venus01:27 – 02:49
- 9☿︎ Mercury02:49 – 04:11
- 10☽︎ Moon04:11 – 05:32
- 11♄︎ Saturn05:32 – 06:54
- 12♃︎ Jupiter06:54 – 08:16
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Birmingham?
On Monday, 21 December 2026, the Sun rises at 08:15 and sets at 15:55: the day lasts 7h 40m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:16, lasts 16h 21m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
The Moon, from 08:15 to 08:54: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.