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, 13 May 2025: day of Mars
- Sunrise
- 05:21
- Sunset
- 20:52
- Next sunrise
- 05:20
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/London).
Day
- 1♂︎ Mars05:21 – 06:39
- 2☉︎ Sun06:39 – 07:56
- 3♀︎ Venus07:56 – 09:14
- 4☿︎ Mercury09:14 – 10:32
- 5☽︎ Moon10:32 – 11:49
- 6♄︎ Saturn11:49 – 13:07
- 7♃︎ Jupiter13:07 – 14:24
- 8♂︎ Mars14:24 – 15:42
- 9☉︎ Sun15:42 – 17:00
- 10♀︎ Venus17:00 – 18:17
- 11☿︎ Mercury18:17 – 19:35
- 12☽︎ Moon19:35 – 20:52
Night
- 1♄︎ Saturn20:52 – 21:35
- 2♃︎ Jupiter21:35 – 22:17
- 3♂︎ Mars22:17 – 22:59
- 4☉︎ Sun22:59 – 23:41
- 5♀︎ Venus23:41 – 00:24
- 6☿︎ Mercury00:24 – 01:06
- 7☽︎ Moon01:06 – 01:48
- 8♄︎ Saturn01:48 – 02:31
- 9♃︎ Jupiter02:31 – 03:13
- 10♂︎ Mars03:13 – 03:55
- 11☉︎ Sun03:55 – 04:37
- 12♀︎ Venus04:37 – 05:20
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Tuesday, 13 May 2025, the Sun rises at 05:21 and sets at 20:52: the day lasts 15h 31m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:20, lasts 8h 27m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Mars, from 05:21 to 06:39: 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.