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, 12 January 2027: day of Mars
- Sunrise
- 08:11
- Sunset
- 16:26
- Next sunrise
- 08:10
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/London).
Day
- 1♂︎ Mars08:11 – 08:52
- 2☉︎ Sun08:52 – 09:33
- 3♀︎ Venus09:33 – 10:15
- 4☿︎ Mercury10:15 – 10:56
- 5☽︎ Moon10:56 – 11:37
- 6♄︎ Saturn11:37 – 12:18
- 7♃︎ Jupiter12:18 – 13:00
- 8♂︎ Mars13:00 – 13:41
- 9☉︎ Sun13:41 – 14:22
- 10♀︎ Venus14:22 – 15:03
- 11☿︎ Mercury15:03 – 15:44
- 12☽︎ Moon15:44 – 16:26
Night
- 1♄︎ Saturn16:26 – 17:44
- 2♃︎ Jupiter17:44 – 19:03
- 3♂︎ Mars19:03 – 20:22
- 4☉︎ Sun20:22 – 21:40
- 5♀︎ Venus21:40 – 22:59
- 6☿︎ Mercury22:59 – 00:18
- 7☽︎ Moon00:18 – 01:37
- 8♄︎ Saturn01:37 – 02:55
- 9♃︎ Jupiter02:55 – 04:14
- 10♂︎ Mars04:14 – 05:33
- 11☉︎ Sun05:33 – 06:52
- 12♀︎ Venus06:52 – 08:10
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Tuesday, 12 January 2027, the Sun rises at 08:11 and sets at 16:26: the day lasts 8h 14m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:10, lasts 15h 45m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mars, from 08:11 to 08:52: 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.