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, 21 July 2026: day of Mars
- Sunrise
- 05:18
- Sunset
- 21:14
- Next sunrise
- 05:19
A day hour lasts 1h 20m; a night hour, 40 min. Local time (Europe/London).
Day
- 1♂︎ Mars05:18 – 06:38
- 2☉︎ Sun06:38 – 07:57
- 3♀︎ Venus07:57 – 09:17
- 4☿︎ Mercury09:17 – 10:37
- 5☽︎ Moon10:37 – 11:56
- 6♄︎ Saturn11:56 – 13:16
- 7♃︎ Jupiter13:16 – 14:36
- 8♂︎ Mars14:36 – 15:55
- 9☉︎ Sun15:55 – 17:15
- 10♀︎ Venus17:15 – 18:35
- 11☿︎ Mercury18:35 – 19:54
- 12☽︎ Moon19:54 – 21:14
Night
- 1♄︎ Saturn21:14 – 21:54
- 2♃︎ Jupiter21:54 – 22:35
- 3♂︎ Mars22:35 – 23:15
- 4☉︎ Sun23:15 – 23:56
- 5♀︎ Venus23:56 – 00:36
- 6☿︎ Mercury00:36 – 01:17
- 7☽︎ Moon01:17 – 01:57
- 8♄︎ Saturn01:57 – 02:38
- 9♃︎ Jupiter02:38 – 03:18
- 10♂︎ Mars03:18 – 03:58
- 11☉︎ Sun03:58 – 04:39
- 12♀︎ Venus04:39 – 05:19
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Tuesday, 21 July 2026, the Sun rises at 05:18 and sets at 21:14: the day lasts 15h 56m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 05:19, lasts 8h 06m: twelve night hours of 40 min.
Which planet rules the first hour that day?
Mars, from 05:18 to 06:38: 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.