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, 16 August 2026: day of the Sun
- Sunrise
- 06:35
- Sunset
- 17:48
- Next sunrise
- 06:35
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Africa/Johannesburg).
Day
- 1☉︎ Sun06:35 – 07:32
- 2♀︎ Venus07:32 – 08:28
- 3☿︎ Mercury08:28 – 09:24
- 4☽︎ Moon09:24 – 10:20
- 5♄︎ Saturn10:20 – 11:16
- 6♃︎ Jupiter11:16 – 12:12
- 7♂︎ Mars12:12 – 13:08
- 8☉︎ Sun13:08 – 14:04
- 9♀︎ Venus14:04 – 15:00
- 10☿︎ Mercury15:00 – 15:56
- 11☽︎ Moon15:56 – 16:52
- 12♄︎ Saturn16:52 – 17:48
Night
- 1♃︎ Jupiter17:48 – 18:52
- 2♂︎ Mars18:52 – 19:56
- 3☉︎ Sun19:56 – 21:00
- 4♀︎ Venus21:00 – 22:04
- 5☿︎ Mercury22:04 – 23:07
- 6☽︎ Moon23:07 – 00:11
- 7♄︎ Saturn00:11 – 01:15
- 8♃︎ Jupiter01:15 – 02:19
- 9♂︎ Mars02:19 – 03:23
- 10☉︎ Sun03:23 – 04:27
- 11♀︎ Venus04:27 – 05:31
- 12☿︎ Mercury05:31 – 06:35
Other cities · South Africa
Questions
How are the planetary hours calculated in Johannesburg?
On Sunday, 16 August 2026, the Sun rises at 06:35 and sets at 17:48: the day lasts 11h 13m, that is twelve day hours of 56 min. The night, until the next sunrise at 06:35, lasts 12h 46m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
The Sun, from 06:35 to 07:32: 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.