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 Friday, 4 September 2026: day of Venus
- Sunrise
- 06:53
- Sunset
- 19:16
- Next sunrise
- 06:53
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Africa/Dakar).
Day
- 1♀︎ Venus06:53 – 07:55
- 2☿︎ Mercury07:55 – 08:57
- 3☽︎ Moon08:57 – 09:59
- 4♄︎ Saturn09:59 – 11:01
- 5♃︎ Jupiter11:01 – 12:02
- 6♂︎ Mars12:02 – 13:04
- 7☉︎ Sun13:04 – 14:06
- 8♀︎ Venus14:06 – 15:08
- 9☿︎ Mercury15:08 – 16:10
- 10☽︎ Moon16:10 – 17:12
- 11♄︎ Saturn17:12 – 18:14
- 12♃︎ Jupiter18:14 – 19:16
Night
- 1♂︎ Mars19:16 – 20:14
- 2☉︎ Sun20:14 – 21:12
- 3♀︎ Venus21:12 – 22:10
- 4☿︎ Mercury22:10 – 23:08
- 5☽︎ Moon23:08 – 00:06
- 6♄︎ Saturn00:06 – 01:04
- 7♃︎ Jupiter01:04 – 02:02
- 8♂︎ Mars02:02 – 03:01
- 9☉︎ Sun03:01 – 03:59
- 10♀︎ Venus03:59 – 04:57
- 11☿︎ Mercury04:57 – 05:55
- 12☽︎ Moon05:55 – 06:53
Other cities · Senegal
Questions
How are the planetary hours calculated in Saint-Louis?
On Friday, 4 September 2026, the Sun rises at 06:53 and sets at 19:16: the day lasts 12h 23m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:53, lasts 11h 37m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Venus, from 06:53 to 07:55: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.