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 Thursday, 6 August 2026: day of Jupiter
- Sunrise
- 06:23
- Sunset
- 17:33
- Next sunrise
- 06:23
A day hour lasts 56 min; a night hour, 1h 04m. Local time (America/Sao_Paulo).
Day
- 1♃︎ Jupiter06:23 – 07:19
- 2♂︎ Mars07:19 – 08:15
- 3☉︎ Sun08:15 – 09:11
- 4♀︎ Venus09:11 – 10:07
- 5☿︎ Mercury10:07 – 11:02
- 6☽︎ Moon11:02 – 11:58
- 7♄︎ Saturn11:58 – 12:54
- 8♃︎ Jupiter12:54 – 13:50
- 9♂︎ Mars13:50 – 14:46
- 10☉︎ Sun14:46 – 15:41
- 11♀︎ Venus15:41 – 16:37
- 12☿︎ Mercury16:37 – 17:33
Night
- 1☽︎ Moon17:33 – 18:37
- 2♄︎ Saturn18:37 – 19:41
- 3♃︎ Jupiter19:41 – 20:46
- 4♂︎ Mars20:46 – 21:50
- 5☉︎ Sun21:50 – 22:54
- 6♀︎ Venus22:54 – 23:58
- 7☿︎ Mercury23:58 – 01:02
- 8☽︎ Moon01:02 – 02:06
- 9♄︎ Saturn02:06 – 03:10
- 10♃︎ Jupiter03:10 – 04:14
- 11♂︎ Mars04:14 – 05:19
- 12☉︎ Sun05:19 – 06:23
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Thursday, 6 August 2026, the Sun rises at 06:23 and sets at 17:33: the day lasts 11h 10m, that is twelve day hours of 56 min. The night, until the next sunrise at 06:23, lasts 12h 50m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Jupiter, from 06:23 to 07:19: 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.