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 Thursday, 23 October 2025: day of Jupiter
- Sunrise
- 07:48
- Sunset
- 18:00
- Next sunrise
- 07:50
A day hour lasts 51 min; a night hour, 1h 09m. Local time (Europe/London).
Day
- 1♃︎ Jupiter07:48 – 08:39
- 2♂︎ Mars08:39 – 09:30
- 3☉︎ Sun09:30 – 10:21
- 4♀︎ Venus10:21 – 11:12
- 5☿︎ Mercury11:12 – 12:03
- 6☽︎ Moon12:03 – 12:54
- 7♄︎ Saturn12:54 – 13:45
- 8♃︎ Jupiter13:45 – 14:36
- 9♂︎ Mars14:36 – 15:27
- 10☉︎ Sun15:27 – 16:18
- 11♀︎ Venus16:18 – 17:09
- 12☿︎ Mercury17:09 – 18:00
Night
- 1☽︎ Moon18:00 – 19:09
- 2♄︎ Saturn19:09 – 20:18
- 3♃︎ Jupiter20:18 – 21:27
- 4♂︎ Mars21:27 – 22:36
- 5☉︎ Sun22:36 – 23:46
- 6♀︎ Venus23:46 – 00:55
- 7☿︎ Mercury00:55 – 02:04
- 8☽︎ Moon02:04 – 03:13
- 9♄︎ Saturn03:13 – 04:22
- 10♃︎ Jupiter04:22 – 05:31
- 11♂︎ Mars05:31 – 06:40
- 12☉︎ Sun06:40 – 07:50
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Thursday, 23 October 2025, the Sun rises at 07:48 and sets at 18:00: the day lasts 10h 12m, that is twelve day hours of 51 min. The night, until the next sunrise at 07:50, lasts 13h 50m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
Jupiter, from 07:48 to 08:39: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.