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 Sunday, 17 January 2027: day of the Sun
- Sunrise
- 05:30
- Sunset
- 19:04
- Next sunrise
- 05:31
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Africa/Johannesburg).
Day
- 1☉︎ Sun05:30 – 06:38
- 2♀︎ Venus06:38 – 07:46
- 3☿︎ Mercury07:46 – 08:54
- 4☽︎ Moon08:54 – 10:01
- 5♄︎ Saturn10:01 – 11:09
- 6♃︎ Jupiter11:09 – 12:17
- 7♂︎ Mars12:17 – 13:25
- 8☉︎ Sun13:25 – 14:33
- 9♀︎ Venus14:33 – 15:41
- 10☿︎ Mercury15:41 – 16:49
- 11☽︎ Moon16:49 – 17:56
- 12♄︎ Saturn17:56 – 19:04
Night
- 1♃︎ Jupiter19:04 – 19:57
- 2♂︎ Mars19:57 – 20:49
- 3☉︎ Sun20:49 – 21:41
- 4♀︎ Venus21:41 – 22:33
- 5☿︎ Mercury22:33 – 23:25
- 6☽︎ Moon23:25 – 00:18
- 7♄︎ Saturn00:18 – 01:10
- 8♃︎ Jupiter01:10 – 02:02
- 9♂︎ Mars02:02 – 02:54
- 10☉︎ Sun02:54 – 03:46
- 11♀︎ Venus03:46 – 04:39
- 12☿︎ Mercury04:39 – 05:31
Other cities · South Africa
Questions
How are the planetary hours calculated in Johannesburg?
On Sunday, 17 January 2027, the Sun rises at 05:30 and sets at 19:04: the day lasts 13h 34m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:31, lasts 10h 27m: twelve night hours of 52 min.
Which planet rules the first hour that day?
The Sun, from 05:30 to 06:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.