Planetary hours
in Bristol.
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, 2 December 2025: day of Mars
- Sunrise
- 07:55
- Sunset
- 16:04
- Next sunrise
- 07:56
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/London).
Day
- 1♂︎ Mars07:55 – 08:35
- 2☉︎ Sun08:35 – 09:16
- 3♀︎ Venus09:16 – 09:57
- 4☿︎ Mercury09:57 – 10:38
- 5☽︎ Moon10:38 – 11:18
- 6♄︎ Saturn11:18 – 11:59
- 7♃︎ Jupiter11:59 – 12:40
- 8♂︎ Mars12:40 – 13:21
- 9☉︎ Sun13:21 – 14:02
- 10♀︎ Venus14:02 – 14:42
- 11☿︎ Mercury14:42 – 15:23
- 12☽︎ Moon15:23 – 16:04
Night
- 1♄︎ Saturn16:04 – 17:23
- 2♃︎ Jupiter17:23 – 18:43
- 3♂︎ Mars18:43 – 20:02
- 4☉︎ Sun20:02 – 21:21
- 5♀︎ Venus21:21 – 22:41
- 6☿︎ Mercury22:41 – 00:00
- 7☽︎ Moon00:00 – 01:19
- 8♄︎ Saturn01:19 – 02:39
- 9♃︎ Jupiter02:39 – 03:58
- 10♂︎ Mars03:58 – 05:17
- 11☉︎ Sun05:17 – 06:37
- 12♀︎ Venus06:37 – 07:56
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Tuesday, 2 December 2025, the Sun rises at 07:55 and sets at 16:04: the day lasts 8h 09m, that is twelve day hours of 41 min. The night, until the next sunrise at 07:56, lasts 15h 52m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mars, from 07:55 to 08:35: 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.