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 Sunday, 10 August 2025: day of the Sun
- Sunrise
- 05:48
- Sunset
- 20:41
- Next sunrise
- 05:49
A day hour lasts 1h 14m; a night hour, 46 min. Local time (Europe/London).
Day
- 1☉︎ Sun05:48 – 07:02
- 2♀︎ Venus07:02 – 08:17
- 3☿︎ Mercury08:17 – 09:31
- 4☽︎ Moon09:31 – 10:46
- 5♄︎ Saturn10:46 – 12:00
- 6♃︎ Jupiter12:00 – 13:15
- 7♂︎ Mars13:15 – 14:29
- 8☉︎ Sun14:29 – 15:44
- 9♀︎ Venus15:44 – 16:58
- 10☿︎ Mercury16:58 – 18:13
- 11☽︎ Moon18:13 – 19:27
- 12♄︎ Saturn19:27 – 20:41
Night
- 1♃︎ Jupiter20:41 – 21:27
- 2♂︎ Mars21:27 – 22:13
- 3☉︎ Sun22:13 – 22:58
- 4♀︎ Venus22:58 – 23:44
- 5☿︎ Mercury23:44 – 00:30
- 6☽︎ Moon00:30 – 01:15
- 7♄︎ Saturn01:15 – 02:01
- 8♃︎ Jupiter02:01 – 02:47
- 9♂︎ Mars02:47 – 03:32
- 10☉︎ Sun03:32 – 04:18
- 11♀︎ Venus04:18 – 05:04
- 12☿︎ Mercury05:04 – 05:49
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Sunday, 10 August 2025, the Sun rises at 05:48 and sets at 20:41: the day lasts 14h 54m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:49, lasts 9h 08m: twelve night hours of 46 min.
Which planet rules the first hour that day?
The Sun, from 05:48 to 07:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.