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, 9 January 2026: day of Venus
- Sunrise
- 07:35
- Sunset
- 18:50
- Next sunrise
- 07:36
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Africa/Dakar).
Day
- 1♀︎ Venus07:35 – 08:32
- 2☿︎ Mercury08:32 – 09:28
- 3☽︎ Moon09:28 – 10:24
- 4♄︎ Saturn10:24 – 11:20
- 5♃︎ Jupiter11:20 – 12:16
- 6♂︎ Mars12:16 – 13:13
- 7☉︎ Sun13:13 – 14:09
- 8♀︎ Venus14:09 – 15:05
- 9☿︎ Mercury15:05 – 16:01
- 10☽︎ Moon16:01 – 16:57
- 11♄︎ Saturn16:57 – 17:54
- 12♃︎ Jupiter17:54 – 18:50
Night
- 1♂︎ Mars18:50 – 19:54
- 2☉︎ Sun19:54 – 20:57
- 3♀︎ Venus20:57 – 22:01
- 4☿︎ Mercury22:01 – 23:05
- 5☽︎ Moon23:05 – 00:09
- 6♄︎ Saturn00:09 – 01:13
- 7♃︎ Jupiter01:13 – 02:17
- 8♂︎ Mars02:17 – 03:20
- 9☉︎ Sun03:20 – 04:24
- 10♀︎ Venus04:24 – 05:28
- 11☿︎ Mercury05:28 – 06:32
- 12☽︎ Moon06:32 – 07:36
Other cities · Senegal
Questions
How are the planetary hours calculated in Saint-Louis?
On Friday, 9 January 2026, the Sun rises at 07:35 and sets at 18:50: the day lasts 11h 14m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:36, lasts 12h 46m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Venus, from 07:35 to 08:32: 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.