Planetary hours
in Johannesburg.
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 Monday, 21 December 2026: day of the Moon
- Sunrise
- 05:12
- Sunset
- 18:59
- Next sunrise
- 05:12
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Africa/Johannesburg).
Day
- 1☽︎ Moon05:12 – 06:21
- 2♄︎ Saturn06:21 – 07:30
- 3♃︎ Jupiter07:30 – 08:39
- 4♂︎ Mars08:39 – 09:48
- 5☉︎ Sun09:48 – 10:56
- 6♀︎ Venus10:56 – 12:05
- 7☿︎ Mercury12:05 – 13:14
- 8☽︎ Moon13:14 – 14:23
- 9♄︎ Saturn14:23 – 15:32
- 10♃︎ Jupiter15:32 – 16:41
- 11♂︎ Mars16:41 – 17:50
- 12☉︎ Sun17:50 – 18:59
Night
- 1♀︎ Venus18:59 – 19:50
- 2☿︎ Mercury19:50 – 20:41
- 3☽︎ Moon20:41 – 21:32
- 4♄︎ Saturn21:32 – 22:23
- 5♃︎ Jupiter22:23 – 23:14
- 6♂︎ Mars23:14 – 00:06
- 7☉︎ Sun00:06 – 00:57
- 8♀︎ Venus00:57 – 01:48
- 9☿︎ Mercury01:48 – 02:39
- 10☽︎ Moon02:39 – 03:30
- 11♄︎ Saturn03:30 – 04:21
- 12♃︎ Jupiter04:21 – 05:12
Other cities · South Africa
Questions
How are the planetary hours calculated in Johannesburg?
On Monday, 21 December 2026, the Sun rises at 05:12 and sets at 18:59: the day lasts 13h 47m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 05:12, lasts 10h 13m: twelve night hours of 51 min.
Which planet rules the first hour that day?
The Moon, from 05:12 to 06:21: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.