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 Tuesday, 4 August 2026: day of Mars
- Sunrise
- 05:38
- Sunset
- 20:53
- Next sunrise
- 05:40
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/London).
Day
- 1♂︎ Mars05:38 – 06:54
- 2☉︎ Sun06:54 – 08:11
- 3♀︎ Venus08:11 – 09:27
- 4☿︎ Mercury09:27 – 10:43
- 5☽︎ Moon10:43 – 11:59
- 6♄︎ Saturn11:59 – 13:16
- 7♃︎ Jupiter13:16 – 14:32
- 8♂︎ Mars14:32 – 15:48
- 9☉︎ Sun15:48 – 17:04
- 10♀︎ Venus17:04 – 18:20
- 11☿︎ Mercury18:20 – 19:37
- 12☽︎ Moon19:37 – 20:53
Night
- 1♄︎ Saturn20:53 – 21:37
- 2♃︎ Jupiter21:37 – 22:21
- 3♂︎ Mars22:21 – 23:05
- 4☉︎ Sun23:05 – 23:48
- 5♀︎ Venus23:48 – 00:32
- 6☿︎ Mercury00:32 – 01:16
- 7☽︎ Moon01:16 – 02:00
- 8♄︎ Saturn02:00 – 02:44
- 9♃︎ Jupiter02:44 – 03:28
- 10♂︎ Mars03:28 – 04:12
- 11☉︎ Sun04:12 – 04:56
- 12♀︎ Venus04:56 – 05:40
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Tuesday, 4 August 2026, the Sun rises at 05:38 and sets at 20:53: the day lasts 15h 14m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 05:40, lasts 8h 47m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mars, from 05:38 to 06:54: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.