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, 21 May 2026: day of Jupiter
- Sunrise
- 05:10
- Sunset
- 21:04
- Next sunrise
- 05:09
A day hour lasts 1h 19m; a night hour, 40 min. Local time (Europe/London).
Day
- 1♃︎ Jupiter05:10 – 06:30
- 2♂︎ Mars06:30 – 07:49
- 3☉︎ Sun07:49 – 09:09
- 4♀︎ Venus09:09 – 10:28
- 5☿︎ Mercury10:28 – 11:47
- 6☽︎ Moon11:47 – 13:07
- 7♄︎ Saturn13:07 – 14:26
- 8♃︎ Jupiter14:26 – 15:46
- 9♂︎ Mars15:46 – 17:05
- 10☉︎ Sun17:05 – 18:25
- 11♀︎ Venus18:25 – 19:44
- 12☿︎ Mercury19:44 – 21:04
Night
- 1☽︎ Moon21:04 – 21:44
- 2♄︎ Saturn21:44 – 22:25
- 3♃︎ Jupiter22:25 – 23:05
- 4♂︎ Mars23:05 – 23:45
- 5☉︎ Sun23:45 – 00:26
- 6♀︎ Venus00:26 – 01:06
- 7☿︎ Mercury01:06 – 01:47
- 8☽︎ Moon01:47 – 02:27
- 9♄︎ Saturn02:27 – 03:08
- 10♃︎ Jupiter03:08 – 03:48
- 11♂︎ Mars03:48 – 04:28
- 12☉︎ Sun04:28 – 05:09
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Thursday, 21 May 2026, the Sun rises at 05:10 and sets at 21:04: the day lasts 15h 54m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:09, lasts 8h 05m: twelve night hours of 40 min.
Which planet rules the first hour that day?
Jupiter, from 05:10 to 06:30: 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.