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 Thursday, 21 January 2027: day of Jupiter
- Sunrise
- 05:33
- Sunset
- 19:04
- Next sunrise
- 05:34
A day hour lasts 1h 08m; a night hour, 53 min. Local time (Africa/Johannesburg).
Day
- 1♃︎ Jupiter05:33 – 06:41
- 2♂︎ Mars06:41 – 07:48
- 3☉︎ Sun07:48 – 08:56
- 4♀︎ Venus08:56 – 10:03
- 5☿︎ Mercury10:03 – 11:11
- 6☽︎ Moon11:11 – 12:18
- 7♄︎ Saturn12:18 – 13:26
- 8♃︎ Jupiter13:26 – 14:33
- 9♂︎ Mars14:33 – 15:41
- 10☉︎ Sun15:41 – 16:48
- 11♀︎ Venus16:48 – 17:56
- 12☿︎ Mercury17:56 – 19:04
Night
- 1☽︎ Moon19:04 – 19:56
- 2♄︎ Saturn19:56 – 20:49
- 3♃︎ Jupiter20:49 – 21:41
- 4♂︎ Mars21:41 – 22:34
- 5☉︎ Sun22:34 – 23:26
- 6♀︎ Venus23:26 – 00:19
- 7☿︎ Mercury00:19 – 01:11
- 8☽︎ Moon01:11 – 02:04
- 9♄︎ Saturn02:04 – 02:56
- 10♃︎ Jupiter02:56 – 03:49
- 11♂︎ Mars03:49 – 04:42
- 12☉︎ Sun04:42 – 05:34
Other cities · South Africa
Questions
How are the planetary hours calculated in Johannesburg?
On Thursday, 21 January 2027, the Sun rises at 05:33 and sets at 19:04: the day lasts 13h 30m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:34, lasts 10h 30m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Jupiter, from 05:33 to 06:41: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.