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 Friday, 25 July 2025: day of Venus
- Sunrise
- 05:24
- Sunset
- 21:08
- Next sunrise
- 05:25
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/London).
Day
- 1♀︎ Venus05:24 – 06:43
- 2☿︎ Mercury06:43 – 08:01
- 3☽︎ Moon08:01 – 09:20
- 4♄︎ Saturn09:20 – 10:39
- 5♃︎ Jupiter10:39 – 11:57
- 6♂︎ Mars11:57 – 13:16
- 7☉︎ Sun13:16 – 14:35
- 8♀︎ Venus14:35 – 15:53
- 9☿︎ Mercury15:53 – 17:12
- 10☽︎ Moon17:12 – 18:31
- 11♄︎ Saturn18:31 – 19:49
- 12♃︎ Jupiter19:49 – 21:08
Night
- 1♂︎ Mars21:08 – 21:50
- 2☉︎ Sun21:50 – 22:31
- 3♀︎ Venus22:31 – 23:12
- 4☿︎ Mercury23:12 – 23:54
- 5☽︎ Moon23:54 – 00:35
- 6♄︎ Saturn00:35 – 01:17
- 7♃︎ Jupiter01:17 – 01:58
- 8♂︎ Mars01:58 – 02:40
- 9☉︎ Sun02:40 – 03:21
- 10♀︎ Venus03:21 – 04:02
- 11☿︎ Mercury04:02 – 04:44
- 12☽︎ Moon04:44 – 05:25
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Friday, 25 July 2025, the Sun rises at 05:24 and sets at 21:08: the day lasts 15h 44m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:25, lasts 8h 17m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Venus, from 05:24 to 06:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.