Planetary hours
in Rio de Janeiro.
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 Friday, 17 December 2027: day of Venus
- Sunrise
- 05:02
- Sunset
- 18:34
- Next sunrise
- 05:02
A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Sao_Paulo).
Day
- 1♀︎ Venus05:02 – 06:10
- 2☿︎ Mercury06:10 – 07:17
- 3☽︎ Moon07:17 – 08:25
- 4♄︎ Saturn08:25 – 09:33
- 5♃︎ Jupiter09:33 – 10:41
- 6♂︎ Mars10:41 – 11:48
- 7☉︎ Sun11:48 – 12:56
- 8♀︎ Venus12:56 – 14:04
- 9☿︎ Mercury14:04 – 15:11
- 10☽︎ Moon15:11 – 16:19
- 11♄︎ Saturn16:19 – 17:27
- 12♃︎ Jupiter17:27 – 18:34
Night
- 1♂︎ Mars18:34 – 19:27
- 2☉︎ Sun19:27 – 20:19
- 3♀︎ Venus20:19 – 21:11
- 4☿︎ Mercury21:11 – 22:04
- 5☽︎ Moon22:04 – 22:56
- 6♄︎ Saturn22:56 – 23:48
- 7♃︎ Jupiter23:48 – 00:41
- 8♂︎ Mars00:41 – 01:33
- 9☉︎ Sun01:33 – 02:25
- 10♀︎ Venus02:25 – 03:18
- 11☿︎ Mercury03:18 – 04:10
- 12☽︎ Moon04:10 – 05:02
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Friday, 17 December 2027, the Sun rises at 05:02 and sets at 18:34: the day lasts 13h 32m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:02, lasts 10h 28m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Venus, from 05:02 to 06:10: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.