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 Saturday, 18 July 2026: day of Saturn
- Sunrise
- 05:14
- Sunset
- 21:17
- Next sunrise
- 05:15
A day hour lasts 1h 20m; a night hour, 40 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:14 – 06:34
- 2♃︎ Jupiter06:34 – 07:55
- 3♂︎ Mars07:55 – 09:15
- 4☉︎ Sun09:15 – 10:35
- 5♀︎ Venus10:35 – 11:56
- 6☿︎ Mercury11:56 – 13:16
- 7☽︎ Moon13:16 – 14:36
- 8♄︎ Saturn14:36 – 15:56
- 9♃︎ Jupiter15:56 – 17:17
- 10♂︎ Mars17:17 – 18:37
- 11☉︎ Sun18:37 – 19:57
- 12♀︎ Venus19:57 – 21:17
Night
- 1☿︎ Mercury21:17 – 21:57
- 2☽︎ Moon21:57 – 22:37
- 3♄︎ Saturn22:37 – 23:17
- 4♃︎ Jupiter23:17 – 23:57
- 5♂︎ Mars23:57 – 00:37
- 6☉︎ Sun00:37 – 01:16
- 7♀︎ Venus01:16 – 01:56
- 8☿︎ Mercury01:56 – 02:36
- 9☽︎ Moon02:36 – 03:16
- 10♄︎ Saturn03:16 – 03:56
- 11♃︎ Jupiter03:56 – 04:36
- 12♂︎ Mars04:36 – 05:15
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Saturday, 18 July 2026, the Sun rises at 05:14 and sets at 21:17: the day lasts 16h 03m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 05:15, lasts 7h 58m: twelve night hours of 40 min.
Which planet rules the first hour that day?
Saturn, from 05:14 to 06:34: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.