Planetary hours
in Sheffield.
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 Thursday, 17 December 2026: day of Jupiter
- Sunrise
- 08:16
- Sunset
- 15:47
- Next sunrise
- 08:17
A day hour lasts 38 min; a night hour, 1h 23m. Local time (Europe/London).
Day
- 1♃︎ Jupiter08:16 – 08:54
- 2♂︎ Mars08:54 – 09:31
- 3☉︎ Sun09:31 – 10:09
- 4♀︎ Venus10:09 – 10:46
- 5☿︎ Mercury10:46 – 11:24
- 6☽︎ Moon11:24 – 12:01
- 7♄︎ Saturn12:01 – 12:39
- 8♃︎ Jupiter12:39 – 13:17
- 9♂︎ Mars13:17 – 13:54
- 10☉︎ Sun13:54 – 14:32
- 11♀︎ Venus14:32 – 15:09
- 12☿︎ Mercury15:09 – 15:47
Night
- 1☽︎ Moon15:47 – 17:09
- 2♄︎ Saturn17:09 – 18:32
- 3♃︎ Jupiter18:32 – 19:54
- 4♂︎ Mars19:54 – 21:17
- 5☉︎ Sun21:17 – 22:39
- 6♀︎ Venus22:39 – 00:02
- 7☿︎ Mercury00:02 – 01:24
- 8☽︎ Moon01:24 – 02:47
- 9♄︎ Saturn02:47 – 04:09
- 10♃︎ Jupiter04:09 – 05:32
- 11♂︎ Mars05:32 – 06:54
- 12☉︎ Sun06:54 – 08:17
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Sheffield?
On Thursday, 17 December 2026, the Sun rises at 08:16 and sets at 15:47: the day lasts 7h 31m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:17, lasts 16h 30m: twelve night hours of 1h 23m.
Which planet rules the first hour that day?
Jupiter, from 08:16 to 08:54: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.