Planetary hours
in Guédiawaye.
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 January 2026: day of Mercury
- Sunrise
- 07:39
- Sunset
- 19:02
- Next sunrise
- 07:39
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Africa/Dakar).
Day
- 1☿︎ Mercury07:39 – 08:36
- 2☽︎ Moon08:36 – 09:33
- 3♄︎ Saturn09:33 – 10:30
- 4♃︎ Jupiter10:30 – 11:26
- 5♂︎ Mars11:26 – 12:23
- 6☉︎ Sun12:23 – 13:20
- 7♀︎ Venus13:20 – 14:17
- 8☿︎ Mercury14:17 – 15:14
- 9☽︎ Moon15:14 – 16:11
- 10♄︎ Saturn16:11 – 17:08
- 11♃︎ Jupiter17:08 – 18:05
- 12♂︎ Mars18:05 – 19:02
Night
- 1☉︎ Sun19:02 – 20:05
- 2♀︎ Venus20:05 – 21:08
- 3☿︎ Mercury21:08 – 22:11
- 4☽︎ Moon22:11 – 23:14
- 5♄︎ Saturn23:14 – 00:17
- 6♃︎ Jupiter00:17 – 01:20
- 7♂︎ Mars01:20 – 02:23
- 8☉︎ Sun02:23 – 03:27
- 9♀︎ Venus03:27 – 04:30
- 10☿︎ Mercury04:30 – 05:33
- 11☽︎ Moon05:33 – 06:36
- 12♄︎ Saturn06:36 – 07:39
Other cities · Senegal
Questions
How are the planetary hours calculated in Guédiawaye?
On Wednesday, 21 January 2026, the Sun rises at 07:39 and sets at 19:02: the day lasts 11h 24m, that is twelve day hours of 57 min. The night, until the next sunrise at 07:39, lasts 12h 36m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Mercury, from 07:39 to 08:36: 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.