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, 21 April 2027: day of Mercury
- Sunrise
- 06:47
- Sunset
- 19:22
- Next sunrise
- 06:46
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Africa/Dakar).
Day
- 1☿︎ Mercury06:47 – 07:50
- 2☽︎ Moon07:50 – 08:53
- 3♄︎ Saturn08:53 – 09:56
- 4♃︎ Jupiter09:56 – 10:59
- 5♂︎ Mars10:59 – 12:01
- 6☉︎ Sun12:01 – 13:04
- 7♀︎ Venus13:04 – 14:07
- 8☿︎ Mercury14:07 – 15:10
- 9☽︎ Moon15:10 – 16:13
- 10♄︎ Saturn16:13 – 17:16
- 11♃︎ Jupiter17:16 – 18:19
- 12♂︎ Mars18:19 – 19:22
Night
- 1☉︎ Sun19:22 – 20:19
- 2♀︎ Venus20:19 – 21:16
- 3☿︎ Mercury21:16 – 22:13
- 4☽︎ Moon22:13 – 23:10
- 5♄︎ Saturn23:10 – 00:07
- 6♃︎ Jupiter00:07 – 01:04
- 7♂︎ Mars01:04 – 02:01
- 8☉︎ Sun02:01 – 02:58
- 9♀︎ Venus02:58 – 03:55
- 10☿︎ Mercury03:55 – 04:52
- 11☽︎ Moon04:52 – 05:49
- 12♄︎ Saturn05:49 – 06:46
Other cities · Senegal
Questions
How are the planetary hours calculated in Saint-Louis?
On Wednesday, 21 April 2027, the Sun rises at 06:47 and sets at 19:22: the day lasts 12h 35m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 06:46, lasts 11h 25m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Mercury, from 06:47 to 07:50: 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.