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 Thursday, 21 August 2025: day of Jupiter
- Sunrise
- 06:00
- Sunset
- 20:38
- Next sunrise
- 06:02
A day hour lasts 1h 13m; a night hour, 47 min. Local time (Europe/London).
Day
- 1♃︎ Jupiter06:00 – 07:13
- 2♂︎ Mars07:13 – 08:26
- 3☉︎ Sun08:26 – 09:39
- 4♀︎ Venus09:39 – 10:53
- 5☿︎ Mercury10:53 – 12:06
- 6☽︎ Moon12:06 – 13:19
- 7♄︎ Saturn13:19 – 14:32
- 8♃︎ Jupiter14:32 – 15:45
- 9♂︎ Mars15:45 – 16:58
- 10☉︎ Sun16:58 – 18:12
- 11♀︎ Venus18:12 – 19:25
- 12☿︎ Mercury19:25 – 20:38
Night
- 1☽︎ Moon20:38 – 21:25
- 2♄︎ Saturn21:25 – 22:12
- 3♃︎ Jupiter22:12 – 22:59
- 4♂︎ Mars22:59 – 23:46
- 5☉︎ Sun23:46 – 00:33
- 6♀︎ Venus00:33 – 01:20
- 7☿︎ Mercury01:20 – 02:07
- 8☽︎ Moon02:07 – 02:54
- 9♄︎ Saturn02:54 – 03:41
- 10♃︎ Jupiter03:41 – 04:28
- 11♂︎ Mars04:28 – 05:15
- 12☉︎ Sun05:15 – 06:02
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Glasgow?
On Thursday, 21 August 2025, the Sun rises at 06:00 and sets at 20:38: the day lasts 14h 38m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 06:02, lasts 9h 24m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Jupiter, from 06:00 to 07:13: 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.