Planetary hours
in Mons.
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 May 2026: day of Jupiter
- Sunrise
- 05:48
- Sunset
- 21:33
- Next sunrise
- 05:47
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter05:48 – 07:07
- 2♂︎ Mars07:07 – 08:26
- 3☉︎ Sun08:26 – 09:45
- 4♀︎ Venus09:45 – 11:03
- 5☿︎ Mercury11:03 – 12:22
- 6☽︎ Moon12:22 – 13:41
- 7♄︎ Saturn13:41 – 14:59
- 8♃︎ Jupiter14:59 – 16:18
- 9♂︎ Mars16:18 – 17:37
- 10☉︎ Sun17:37 – 18:56
- 11♀︎ Venus18:56 – 20:14
- 12☿︎ Mercury20:14 – 21:33
Night
- 1☽︎ Moon21:33 – 22:14
- 2♄︎ Saturn22:14 – 22:55
- 3♃︎ Jupiter22:55 – 23:37
- 4♂︎ Mars23:37 – 00:18
- 5☉︎ Sun00:18 – 00:59
- 6♀︎ Venus00:59 – 01:40
- 7☿︎ Mercury01:40 – 02:21
- 8☽︎ Moon02:21 – 03:02
- 9♄︎ Saturn03:02 – 03:44
- 10♃︎ Jupiter03:44 – 04:25
- 11♂︎ Mars04:25 – 05:06
- 12☉︎ Sun05:06 – 05:47
Other cities · Belgium
Questions
How are the planetary hours calculated in Mons?
On Thursday, 21 May 2026, the Sun rises at 05:48 and sets at 21:33: the day lasts 15h 45m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:47, lasts 8h 14m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Jupiter, from 05:48 to 07:07: 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.