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 Wednesday, 31 December 2025: day of Mercury
- Sunrise
- 08:21
- Sunset
- 15:56
- Next sunrise
- 08:21
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/London).
Day
- 1☿︎ Mercury08:21 – 08:59
- 2☽︎ Moon08:59 – 09:37
- 3♄︎ Saturn09:37 – 10:15
- 4♃︎ Jupiter10:15 – 10:53
- 5♂︎ Mars10:53 – 11:31
- 6☉︎ Sun11:31 – 12:09
- 7♀︎ Venus12:09 – 12:47
- 8☿︎ Mercury12:47 – 13:24
- 9☽︎ Moon13:24 – 14:02
- 10♄︎ Saturn14:02 – 14:40
- 11♃︎ Jupiter14:40 – 15:18
- 12♂︎ Mars15:18 – 15:56
Night
- 1☉︎ Sun15:56 – 17:18
- 2♀︎ Venus17:18 – 18:40
- 3☿︎ Mercury18:40 – 20:02
- 4☽︎ Moon20:02 – 21:24
- 5♄︎ Saturn21:24 – 22:46
- 6♃︎ Jupiter22:46 – 00:09
- 7♂︎ Mars00:09 – 01:31
- 8☉︎ Sun01:31 – 02:53
- 9♀︎ Venus02:53 – 04:15
- 10☿︎ Mercury04:15 – 05:37
- 11☽︎ Moon05:37 – 06:59
- 12♄︎ Saturn06:59 – 08:21
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Sheffield?
On Wednesday, 31 December 2025, the Sun rises at 08:21 and sets at 15:56: the day lasts 7h 35m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:21, lasts 16h 25m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mercury, from 08:21 to 08:59: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.