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, 8 August 2026: day of Saturn
- Sunrise
- 05:44
- Sunset
- 20:46
- Next sunrise
- 05:46
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:44 – 07:00
- 2♃︎ Jupiter07:00 – 08:15
- 3♂︎ Mars08:15 – 09:30
- 4☉︎ Sun09:30 – 10:45
- 5♀︎ Venus10:45 – 12:00
- 6☿︎ Mercury12:00 – 13:15
- 7☽︎ Moon13:15 – 14:30
- 8♄︎ Saturn14:30 – 15:45
- 9♃︎ Jupiter15:45 – 17:00
- 10♂︎ Mars17:00 – 18:15
- 11☉︎ Sun18:15 – 19:31
- 12♀︎ Venus19:31 – 20:46
Night
- 1☿︎ Mercury20:46 – 21:31
- 2☽︎ Moon21:31 – 22:16
- 3♄︎ Saturn22:16 – 23:01
- 4♃︎ Jupiter23:01 – 23:46
- 5♂︎ Mars23:46 – 00:31
- 6☉︎ Sun00:31 – 01:16
- 7♀︎ Venus01:16 – 02:01
- 8☿︎ Mercury02:01 – 02:46
- 9☽︎ Moon02:46 – 03:31
- 10♄︎ Saturn03:31 – 04:16
- 11♃︎ Jupiter04:16 – 05:01
- 12♂︎ Mars05:01 – 05:46
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Saturday, 8 August 2026, the Sun rises at 05:44 and sets at 20:46: the day lasts 15h 01m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:46, lasts 9h 00m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Saturn, from 05:44 to 07:00: 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.