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 Monday, 18 May 2026: day of the Moon
- Sunrise
- 06:35
- Sunset
- 19:29
- Next sunrise
- 06:35
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Africa/Dakar).
Day
- 1☽︎ Moon06:35 – 07:39
- 2♄︎ Saturn07:39 – 08:44
- 3♃︎ Jupiter08:44 – 09:48
- 4♂︎ Mars09:48 – 10:53
- 5☉︎ Sun10:53 – 11:57
- 6♀︎ Venus11:57 – 13:02
- 7☿︎ Mercury13:02 – 14:07
- 8☽︎ Moon14:07 – 15:11
- 9♄︎ Saturn15:11 – 16:16
- 10♃︎ Jupiter16:16 – 17:20
- 11♂︎ Mars17:20 – 18:25
- 12☉︎ Sun18:25 – 19:29
Night
- 1♀︎ Venus19:29 – 20:25
- 2☿︎ Mercury20:25 – 21:20
- 3☽︎ Moon21:20 – 22:16
- 4♄︎ Saturn22:16 – 23:11
- 5♃︎ Jupiter23:11 – 00:06
- 6♂︎ Mars00:06 – 01:02
- 7☉︎ Sun01:02 – 01:57
- 8♀︎ Venus01:57 – 02:53
- 9☿︎ Mercury02:53 – 03:48
- 10☽︎ Moon03:48 – 04:44
- 11♄︎ Saturn04:44 – 05:39
- 12♃︎ Jupiter05:39 – 06:35
Other cities · Senegal
Questions
How are the planetary hours calculated in Saint-Louis?
On Monday, 18 May 2026, the Sun rises at 06:35 and sets at 19:29: the day lasts 12h 54m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:35, lasts 11h 05m: twelve night hours of 55 min.
Which planet rules the first hour that day?
The Moon, from 06:35 to 07:39: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.