Planetary hours
in Saint-Louis.
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, 8 December 2027: day of Mercury
- Sunrise
- 07:21
- Sunset
- 18:33
- Next sunrise
- 07:22
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Africa/Dakar).
Day
- 1☿︎ Mercury07:21 – 08:17
- 2☽︎ Moon08:17 – 09:13
- 3♄︎ Saturn09:13 – 10:09
- 4♃︎ Jupiter10:09 – 11:05
- 5♂︎ Mars11:05 – 12:01
- 6☉︎ Sun12:01 – 12:57
- 7♀︎ Venus12:57 – 13:53
- 8☿︎ Mercury13:53 – 14:49
- 9☽︎ Moon14:49 – 15:45
- 10♄︎ Saturn15:45 – 16:41
- 11♃︎ Jupiter16:41 – 17:37
- 12♂︎ Mars17:37 – 18:33
Night
- 1☉︎ Sun18:33 – 19:37
- 2♀︎ Venus19:37 – 20:41
- 3☿︎ Mercury20:41 – 21:45
- 4☽︎ Moon21:45 – 22:49
- 5♄︎ Saturn22:49 – 23:53
- 6♃︎ Jupiter23:53 – 00:58
- 7♂︎ Mars00:58 – 02:02
- 8☉︎ Sun02:02 – 03:06
- 9♀︎ Venus03:06 – 04:10
- 10☿︎ Mercury04:10 – 05:14
- 11☽︎ Moon05:14 – 06:18
- 12♄︎ Saturn06:18 – 07:22
Other cities · Senegal
Questions
How are the planetary hours calculated in Saint-Louis?
On Wednesday, 8 December 2027, the Sun rises at 07:21 and sets at 18:33: the day lasts 11h 13m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:22, lasts 12h 48m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Mercury, from 07:21 to 08:17: 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.