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 Saturday, 10 May 2025: day of Saturn
- Sunrise
- 05:26
- Sunset
- 20:48
- Next sunrise
- 05:24
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:26 – 06:43
- 2♃︎ Jupiter06:43 – 07:59
- 3♂︎ Mars07:59 – 09:16
- 4☉︎ Sun09:16 – 10:33
- 5♀︎ Venus10:33 – 11:50
- 6☿︎ Mercury11:50 – 13:07
- 7☽︎ Moon13:07 – 14:24
- 8♄︎ Saturn14:24 – 15:40
- 9♃︎ Jupiter15:40 – 16:57
- 10♂︎ Mars16:57 – 18:14
- 11☉︎ Sun18:14 – 19:31
- 12♀︎ Venus19:31 – 20:48
Night
- 1☿︎ Mercury20:48 – 21:31
- 2☽︎ Moon21:31 – 22:14
- 3♄︎ Saturn22:14 – 22:57
- 4♃︎ Jupiter22:57 – 23:40
- 5♂︎ Mars23:40 – 00:23
- 6☉︎ Sun00:23 – 01:06
- 7♀︎ Venus01:06 – 01:49
- 8☿︎ Mercury01:49 – 02:32
- 9☽︎ Moon02:32 – 03:15
- 10♄︎ Saturn03:15 – 03:58
- 11♃︎ Jupiter03:58 – 04:41
- 12♂︎ Mars04:41 – 05:24
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Saturday, 10 May 2025, the Sun rises at 05:26 and sets at 20:48: the day lasts 15h 22m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:24, lasts 8h 36m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Saturn, from 05:26 to 06:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.