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 Friday, 19 December 2025: day of Venus
- Sunrise
- 08:44
- Sunset
- 15:43
- Next sunrise
- 08:45
A day hour lasts 35 min; a night hour, 1h 25m. Local time (Europe/London).
Day
- 1♀︎ Venus08:44 – 09:19
- 2☿︎ Mercury09:19 – 09:54
- 3☽︎ Moon09:54 – 10:29
- 4♄︎ Saturn10:29 – 11:04
- 5♃︎ Jupiter11:04 – 11:39
- 6♂︎ Mars11:39 – 12:14
- 7☉︎ Sun12:14 – 12:49
- 8♀︎ Venus12:49 – 13:24
- 9☿︎ Mercury13:24 – 13:58
- 10☽︎ Moon13:58 – 14:33
- 11♄︎ Saturn14:33 – 15:08
- 12♃︎ Jupiter15:08 – 15:43
Night
- 1♂︎ Mars15:43 – 17:08
- 2☉︎ Sun17:08 – 18:33
- 3♀︎ Venus18:33 – 19:59
- 4☿︎ Mercury19:59 – 21:24
- 5☽︎ Moon21:24 – 22:49
- 6♄︎ Saturn22:49 – 00:14
- 7♃︎ Jupiter00:14 – 01:39
- 8♂︎ Mars01:39 – 03:04
- 9☉︎ Sun03:04 – 04:29
- 10♀︎ Venus04:29 – 05:55
- 11☿︎ Mercury05:55 – 07:20
- 12☽︎ Moon07:20 – 08:45
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Glasgow?
On Friday, 19 December 2025, the Sun rises at 08:44 and sets at 15:43: the day lasts 6h 59m, that is twelve day hours of 35 min. The night, until the next sunrise at 08:45, lasts 17h 02m: twelve night hours of 1h 25m.
Which planet rules the first hour that day?
Venus, from 08:44 to 09:19: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.