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, 20 August 2026: day of Jupiter
- Sunrise
- 06:03
- Sunset
- 20:22
- Next sunrise
- 06:05
A day hour lasts 1h 12m; a night hour, 49 min. Local time (Europe/London).
Day
- 1♃︎ Jupiter06:03 – 07:15
- 2♂︎ Mars07:15 – 08:26
- 3☉︎ Sun08:26 – 09:38
- 4♀︎ Venus09:38 – 10:50
- 5☿︎ Mercury10:50 – 12:01
- 6☽︎ Moon12:01 – 13:13
- 7♄︎ Saturn13:13 – 14:24
- 8♃︎ Jupiter14:24 – 15:36
- 9♂︎ Mars15:36 – 16:47
- 10☉︎ Sun16:47 – 17:59
- 11♀︎ Venus17:59 – 19:11
- 12☿︎ Mercury19:11 – 20:22
Night
- 1☽︎ Moon20:22 – 21:11
- 2♄︎ Saturn21:11 – 21:59
- 3♃︎ Jupiter21:59 – 22:48
- 4♂︎ Mars22:48 – 23:36
- 5☉︎ Sun23:36 – 00:25
- 6♀︎ Venus00:25 – 01:14
- 7☿︎ Mercury01:14 – 02:02
- 8☽︎ Moon02:02 – 02:51
- 9♄︎ Saturn02:51 – 03:39
- 10♃︎ Jupiter03:39 – 04:28
- 11♂︎ Mars04:28 – 05:16
- 12☉︎ Sun05:16 – 06:05
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Thursday, 20 August 2026, the Sun rises at 06:03 and sets at 20:22: the day lasts 14h 19m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 06:05, lasts 9h 43m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Jupiter, from 06:03 to 07:15: 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.