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, 13 August 2026: day of Jupiter
- Sunrise
- 05:52
- Sunset
- 20:36
- Next sunrise
- 05:54
A day hour lasts 1h 14m; a night hour, 46 min. Local time (Europe/London).
Day
- 1♃︎ Jupiter05:52 – 07:06
- 2♂︎ Mars07:06 – 08:20
- 3☉︎ Sun08:20 – 09:33
- 4♀︎ Venus09:33 – 10:47
- 5☿︎ Mercury10:47 – 12:01
- 6☽︎ Moon12:01 – 13:14
- 7♄︎ Saturn13:14 – 14:28
- 8♃︎ Jupiter14:28 – 15:42
- 9♂︎ Mars15:42 – 16:55
- 10☉︎ Sun16:55 – 18:09
- 11♀︎ Venus18:09 – 19:23
- 12☿︎ Mercury19:23 – 20:36
Night
- 1☽︎ Moon20:36 – 21:23
- 2♄︎ Saturn21:23 – 22:09
- 3♃︎ Jupiter22:09 – 22:56
- 4♂︎ Mars22:56 – 23:42
- 5☉︎ Sun23:42 – 00:29
- 6♀︎ Venus00:29 – 01:15
- 7☿︎ Mercury01:15 – 02:01
- 8☽︎ Moon02:01 – 02:48
- 9♄︎ Saturn02:48 – 03:34
- 10♃︎ Jupiter03:34 – 04:21
- 11♂︎ Mars04:21 – 05:07
- 12☉︎ Sun05:07 – 05:54
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Thursday, 13 August 2026, the Sun rises at 05:52 and sets at 20:36: the day lasts 14h 44m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:54, lasts 9h 18m: twelve night hours of 46 min.
Which planet rules the first hour that day?
Jupiter, from 05:52 to 07:06: 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.