Planetary hours
in Glasgow.
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
- 08:47
- Sunset
- 15:52
- Next sunrise
- 08:47
A day hour lasts 35 min; a night hour, 1h 25m. Local time (Europe/London).
Day
- 1☿︎ Mercury08:47 – 09:23
- 2☽︎ Moon09:23 – 09:58
- 3♄︎ Saturn09:58 – 10:33
- 4♃︎ Jupiter10:33 – 11:09
- 5♂︎ Mars11:09 – 11:44
- 6☉︎ Sun11:44 – 12:20
- 7♀︎ Venus12:20 – 12:55
- 8☿︎ Mercury12:55 – 13:31
- 9☽︎ Moon13:31 – 14:06
- 10♄︎ Saturn14:06 – 14:42
- 11♃︎ Jupiter14:42 – 15:17
- 12♂︎ Mars15:17 – 15:52
Night
- 1☉︎ Sun15:52 – 17:17
- 2♀︎ Venus17:17 – 18:41
- 3☿︎ Mercury18:41 – 20:06
- 4☽︎ Moon20:06 – 21:31
- 5♄︎ Saturn21:31 – 22:55
- 6♃︎ Jupiter22:55 – 00:20
- 7♂︎ Mars00:20 – 01:44
- 8☉︎ Sun01:44 – 03:09
- 9♀︎ Venus03:09 – 04:33
- 10☿︎ Mercury04:33 – 05:58
- 11☽︎ Moon05:58 – 07:22
- 12♄︎ Saturn07:22 – 08:47
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Glasgow?
On Wednesday, 31 December 2025, the Sun rises at 08:47 and sets at 15:52: the day lasts 7h 05m, that is twelve day hours of 35 min. The night, until the next sunrise at 08:47, lasts 16h 54m: twelve night hours of 1h 25m.
Which planet rules the first hour that day?
Mercury, from 08:47 to 09:23: 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.