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, 5 August 2025: day of Mars
- Sunrise
- 05:40
- Sunset
- 20:51
- Next sunrise
- 05:42
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/London).
Day
- 1♂︎ Mars05:40 – 06:56
- 2☉︎ Sun06:56 – 08:12
- 3♀︎ Venus08:12 – 09:28
- 4☿︎ Mercury09:28 – 10:44
- 5☽︎ Moon10:44 – 12:00
- 6♄︎ Saturn12:00 – 13:15
- 7♃︎ Jupiter13:15 – 14:31
- 8♂︎ Mars14:31 – 15:47
- 9☉︎ Sun15:47 – 17:03
- 10♀︎ Venus17:03 – 18:19
- 11☿︎ Mercury18:19 – 19:35
- 12☽︎ Moon19:35 – 20:51
Night
- 1♄︎ Saturn20:51 – 21:35
- 2♃︎ Jupiter21:35 – 22:19
- 3♂︎ Mars22:19 – 23:03
- 4☉︎ Sun23:03 – 23:48
- 5♀︎ Venus23:48 – 00:32
- 6☿︎ Mercury00:32 – 01:16
- 7☽︎ Moon01:16 – 02:00
- 8♄︎ Saturn02:00 – 02:45
- 9♃︎ Jupiter02:45 – 03:29
- 10♂︎ Mars03:29 – 04:13
- 11☉︎ Sun04:13 – 04:57
- 12♀︎ Venus04:57 – 05:42
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Tuesday, 5 August 2025, the Sun rises at 05:40 and sets at 20:51: the day lasts 15h 10m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 05:42, lasts 8h 51m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mars, from 05:40 to 06:56: 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.