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, 15 September 2026: day of Mars
- Sunrise
- 06:45
- Sunset
- 19:24
- Next sunrise
- 06:46
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Europe/London).
Day
- 1♂︎ Mars06:45 – 07:48
- 2☉︎ Sun07:48 – 08:51
- 3♀︎ Venus08:51 – 09:55
- 4☿︎ Mercury09:55 – 10:58
- 5☽︎ Moon10:58 – 12:01
- 6♄︎ Saturn12:01 – 13:05
- 7♃︎ Jupiter13:05 – 14:08
- 8♂︎ Mars14:08 – 15:11
- 9☉︎ Sun15:11 – 16:15
- 10♀︎ Venus16:15 – 17:18
- 11☿︎ Mercury17:18 – 18:21
- 12☽︎ Moon18:21 – 19:24
Night
- 1♄︎ Saturn19:24 – 20:21
- 2♃︎ Jupiter20:21 – 21:18
- 3♂︎ Mars21:18 – 22:15
- 4☉︎ Sun22:15 – 23:12
- 5♀︎ Venus23:12 – 00:09
- 6☿︎ Mercury00:09 – 01:05
- 7☽︎ Moon01:05 – 02:02
- 8♄︎ Saturn02:02 – 02:59
- 9♃︎ Jupiter02:59 – 03:56
- 10♂︎ Mars03:56 – 04:53
- 11☉︎ Sun04:53 – 05:49
- 12♀︎ Venus05:49 – 06:46
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Tuesday, 15 September 2026, the Sun rises at 06:45 and sets at 19:24: the day lasts 12h 40m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 06:46, lasts 11h 22m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Mars, from 06:45 to 07:48: 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.