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, 21 February 2026: day of Saturn
- Sunrise
- 07:12
- Sunset
- 17:36
- Next sunrise
- 07:10
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/London).
Day
- 1♄︎ Saturn07:12 – 08:04
- 2♃︎ Jupiter08:04 – 08:56
- 3♂︎ Mars08:56 – 09:48
- 4☉︎ Sun09:48 – 10:40
- 5♀︎ Venus10:40 – 11:32
- 6☿︎ Mercury11:32 – 12:24
- 7☽︎ Moon12:24 – 13:16
- 8♄︎ Saturn13:16 – 14:08
- 9♃︎ Jupiter14:08 – 15:00
- 10♂︎ Mars15:00 – 15:52
- 11☉︎ Sun15:52 – 16:44
- 12♀︎ Venus16:44 – 17:36
Night
- 1☿︎ Mercury17:36 – 18:44
- 2☽︎ Moon18:44 – 19:52
- 3♄︎ Saturn19:52 – 20:59
- 4♃︎ Jupiter20:59 – 22:07
- 5♂︎ Mars22:07 – 23:15
- 6☉︎ Sun23:15 – 00:23
- 7♀︎ Venus00:23 – 01:31
- 8☿︎ Mercury01:31 – 02:39
- 9☽︎ Moon02:39 – 03:46
- 10♄︎ Saturn03:46 – 04:54
- 11♃︎ Jupiter04:54 – 06:02
- 12♂︎ Mars06:02 – 07:10
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Bristol?
On Saturday, 21 February 2026, the Sun rises at 07:12 and sets at 17:36: the day lasts 10h 24m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:10, lasts 13h 34m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Saturn, from 07:12 to 08:04: 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.