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 Wednesday, 21 January 2026: day of Mercury
- Sunrise
- 08:33
- Sunset
- 17:18
- Next sunrise
- 08:32
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury08:33 – 09:16
- 2☽︎ Moon09:16 – 10:00
- 3♄︎ Saturn10:00 – 10:44
- 4♃︎ Jupiter10:44 – 11:28
- 5♂︎ Mars11:28 – 12:11
- 6☉︎ Sun12:11 – 12:55
- 7♀︎ Venus12:55 – 13:39
- 8☿︎ Mercury13:39 – 14:23
- 9☽︎ Moon14:23 – 15:07
- 10♄︎ Saturn15:07 – 15:50
- 11♃︎ Jupiter15:50 – 16:34
- 12♂︎ Mars16:34 – 17:18
Night
- 1☉︎ Sun17:18 – 18:34
- 2♀︎ Venus18:34 – 19:50
- 3☿︎ Mercury19:50 – 21:06
- 4☽︎ Moon21:06 – 22:22
- 5♄︎ Saturn22:22 – 23:39
- 6♃︎ Jupiter23:39 – 00:55
- 7♂︎ Mars00:55 – 02:11
- 8☉︎ Sun02:11 – 03:27
- 9♀︎ Venus03:27 – 04:43
- 10☿︎ Mercury04:43 – 05:59
- 11☽︎ Moon05:59 – 07:15
- 12♄︎ Saturn07:15 – 08:32
Other cities · Belgium
Questions
How are the planetary hours calculated in Mons?
On Wednesday, 21 January 2026, the Sun rises at 08:33 and sets at 17:18: the day lasts 8h 45m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:32, lasts 15h 14m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Mercury, from 08:33 to 09:16: 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.