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, 6 January 2027: day of Mercury
- Sunrise
- 07:35
- Sunset
- 18:48
- Next sunrise
- 07:35
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Africa/Dakar).
Day
- 1☿︎ Mercury07:35 – 08:31
- 2☽︎ Moon08:31 – 09:27
- 3♄︎ Saturn09:27 – 10:23
- 4♃︎ Jupiter10:23 – 11:19
- 5♂︎ Mars11:19 – 12:15
- 6☉︎ Sun12:15 – 13:11
- 7♀︎ Venus13:11 – 14:07
- 8☿︎ Mercury14:07 – 15:03
- 9☽︎ Moon15:03 – 16:00
- 10♄︎ Saturn16:00 – 16:56
- 11♃︎ Jupiter16:56 – 17:52
- 12♂︎ Mars17:52 – 18:48
Night
- 1☉︎ Sun18:48 – 19:52
- 2♀︎ Venus19:52 – 20:56
- 3☿︎ Mercury20:56 – 22:00
- 4☽︎ Moon22:00 – 23:04
- 5♄︎ Saturn23:04 – 00:07
- 6♃︎ Jupiter00:07 – 01:11
- 7♂︎ Mars01:11 – 02:15
- 8☉︎ Sun02:15 – 03:19
- 9♀︎ Venus03:19 – 04:23
- 10☿︎ Mercury04:23 – 05:27
- 11☽︎ Moon05:27 – 06:31
- 12♄︎ Saturn06:31 – 07:35
Other cities · Senegal
Questions
How are the planetary hours calculated in Saint-Louis?
On Wednesday, 6 January 2027, the Sun rises at 07:35 and sets at 18:48: the day lasts 11h 13m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:35, lasts 12h 47m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Mercury, from 07:35 to 08:31: 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.