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, 31 March 2027: day of Mercury
- Sunrise
- 07:02
- Sunset
- 19:18
- Next sunrise
- 07:01
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Africa/Dakar).
Day
- 1☿︎ Mercury07:02 – 08:03
- 2☽︎ Moon08:03 – 09:04
- 3♄︎ Saturn09:04 – 10:06
- 4♃︎ Jupiter10:06 – 11:07
- 5♂︎ Mars11:07 – 12:08
- 6☉︎ Sun12:08 – 13:10
- 7♀︎ Venus13:10 – 14:11
- 8☿︎ Mercury14:11 – 15:13
- 9☽︎ Moon15:13 – 16:14
- 10♄︎ Saturn16:14 – 17:15
- 11♃︎ Jupiter17:15 – 18:17
- 12♂︎ Mars18:17 – 19:18
Night
- 1☉︎ Sun19:18 – 20:17
- 2♀︎ Venus20:17 – 21:15
- 3☿︎ Mercury21:15 – 22:14
- 4☽︎ Moon22:14 – 23:12
- 5♄︎ Saturn23:12 – 00:11
- 6♃︎ Jupiter00:11 – 01:09
- 7♂︎ Mars01:09 – 02:08
- 8☉︎ Sun02:08 – 03:07
- 9♀︎ Venus03:07 – 04:05
- 10☿︎ Mercury04:05 – 05:04
- 11☽︎ Moon05:04 – 06:02
- 12♄︎ Saturn06:02 – 07:01
Other cities · Senegal
Questions
How are the planetary hours calculated in Saint-Louis?
On Wednesday, 31 March 2027, the Sun rises at 07:02 and sets at 19:18: the day lasts 12h 16m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 07:01, lasts 11h 43m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Mercury, from 07:02 to 08:03: 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.