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, 20 November 2026: day of Venus
- Sunrise
- 04:59
- Sunset
- 18:17
- Next sunrise
- 04:59
A day hour lasts 1h 06m; a night hour, 53 min. Local time (America/Sao_Paulo).
Day
- 1♀︎ Venus04:59 – 06:06
- 2☿︎ Mercury06:06 – 07:12
- 3☽︎ Moon07:12 – 08:19
- 4♄︎ Saturn08:19 – 09:25
- 5♃︎ Jupiter09:25 – 10:31
- 6♂︎ Mars10:31 – 11:38
- 7☉︎ Sun11:38 – 12:44
- 8♀︎ Venus12:44 – 13:51
- 9☿︎ Mercury13:51 – 14:57
- 10☽︎ Moon14:57 – 16:04
- 11♄︎ Saturn16:04 – 17:10
- 12♃︎ Jupiter17:10 – 18:17
Night
- 1♂︎ Mars18:17 – 19:10
- 2☉︎ Sun19:10 – 20:04
- 3♀︎ Venus20:04 – 20:57
- 4☿︎ Mercury20:57 – 21:51
- 5☽︎ Moon21:51 – 22:44
- 6♄︎ Saturn22:44 – 23:38
- 7♃︎ Jupiter23:38 – 00:31
- 8♂︎ Mars00:31 – 01:25
- 9☉︎ Sun01:25 – 02:18
- 10♀︎ Venus02:18 – 03:12
- 11☿︎ Mercury03:12 – 04:05
- 12☽︎ Moon04:05 – 04:59
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Friday, 20 November 2026, the Sun rises at 04:59 and sets at 18:17: the day lasts 13h 18m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 04:59, lasts 10h 42m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Venus, from 04:59 to 06:06: 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.