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 Tuesday, 30 December 2025: day of Mars
- Sunrise
- 08:21
- Sunset
- 15:55
- Next sunrise
- 08:21
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/London).
Day
- 1♂︎ Mars08:21 – 08:59
- 2☉︎ Sun08:59 – 09:37
- 3♀︎ Venus09:37 – 10:15
- 4☿︎ Mercury10:15 – 10:52
- 5☽︎ Moon10:52 – 11:30
- 6♄︎ Saturn11:30 – 12:08
- 7♃︎ Jupiter12:08 – 12:46
- 8♂︎ Mars12:46 – 13:24
- 9☉︎ Sun13:24 – 14:02
- 10♀︎ Venus14:02 – 14:39
- 11☿︎ Mercury14:39 – 15:17
- 12☽︎ Moon15:17 – 15:55
Night
- 1♄︎ Saturn15:55 – 17:17
- 2♃︎ Jupiter17:17 – 18:39
- 3♂︎ Mars18:39 – 20:02
- 4☉︎ Sun20:02 – 21:24
- 5♀︎ Venus21:24 – 22:46
- 6☿︎ Mercury22:46 – 00:08
- 7☽︎ Moon00:08 – 01:30
- 8♄︎ Saturn01:30 – 02:52
- 9♃︎ Jupiter02:52 – 04:14
- 10♂︎ Mars04:14 – 05:37
- 11☉︎ Sun05:37 – 06:59
- 12♀︎ Venus06:59 – 08:21
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Sheffield?
On Tuesday, 30 December 2025, the Sun rises at 08:21 and sets at 15:55: the day lasts 7h 34m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:21, lasts 16h 26m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mars, 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 Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.