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, 9 September 2026: day of Mercury
- Sunrise
- 06:53
- Sunset
- 19:12
- Next sunrise
- 06:53
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Africa/Dakar).
Day
- 1☿︎ Mercury06:53 – 07:55
- 2☽︎ Moon07:55 – 08:56
- 3♄︎ Saturn08:56 – 09:58
- 4♃︎ Jupiter09:58 – 11:00
- 5♂︎ Mars11:00 – 12:01
- 6☉︎ Sun12:01 – 13:03
- 7♀︎ Venus13:03 – 14:04
- 8☿︎ Mercury14:04 – 15:06
- 9☽︎ Moon15:06 – 16:07
- 10♄︎ Saturn16:07 – 17:09
- 11♃︎ Jupiter17:09 – 18:10
- 12♂︎ Mars18:10 – 19:12
Night
- 1☉︎ Sun19:12 – 20:10
- 2♀︎ Venus20:10 – 21:09
- 3☿︎ Mercury21:09 – 22:07
- 4☽︎ Moon22:07 – 23:06
- 5♄︎ Saturn23:06 – 00:04
- 6♃︎ Jupiter00:04 – 01:03
- 7♂︎ Mars01:03 – 02:01
- 8☉︎ Sun02:01 – 03:00
- 9♀︎ Venus03:00 – 03:58
- 10☿︎ Mercury03:58 – 04:56
- 11☽︎ Moon04:56 – 05:55
- 12♄︎ Saturn05:55 – 06:53
Other cities · Senegal
Questions
How are the planetary hours calculated in Saint-Louis?
On Wednesday, 9 September 2026, the Sun rises at 06:53 and sets at 19:12: the day lasts 12h 19m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:53, lasts 11h 41m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mercury, 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: 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.