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 Monday, 17 August 2026: day of the Moon
- Sunrise
- 05:59
- Sunset
- 20:28
- Next sunrise
- 06:00
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Europe/London).
Day
- 1☽︎ Moon05:59 – 07:11
- 2♄︎ Saturn07:11 – 08:24
- 3♃︎ Jupiter08:24 – 09:36
- 4♂︎ Mars09:36 – 10:48
- 5☉︎ Sun10:48 – 12:01
- 6♀︎ Venus12:01 – 13:13
- 7☿︎ Mercury13:13 – 14:26
- 8☽︎ Moon14:26 – 15:38
- 9♄︎ Saturn15:38 – 16:51
- 10♃︎ Jupiter16:51 – 18:03
- 11♂︎ Mars18:03 – 19:16
- 12☉︎ Sun19:16 – 20:28
Night
- 1♀︎ Venus20:28 – 21:16
- 2☿︎ Mercury21:16 – 22:04
- 3☽︎ Moon22:04 – 22:51
- 4♄︎ Saturn22:51 – 23:39
- 5♃︎ Jupiter23:39 – 00:27
- 6♂︎ Mars00:27 – 01:14
- 7☉︎ Sun01:14 – 02:02
- 8♀︎ Venus02:02 – 02:50
- 9☿︎ Mercury02:50 – 03:37
- 10☽︎ Moon03:37 – 04:25
- 11♄︎ Saturn04:25 – 05:13
- 12♃︎ Jupiter05:13 – 06:00
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Monday, 17 August 2026, the Sun rises at 05:59 and sets at 20:28: the day lasts 14h 30m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 06:00, lasts 9h 32m: twelve night hours of 48 min.
Which planet rules the first hour that day?
The Moon, from 05:59 to 07:11: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.