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, 24 December 2026: day of Jupiter
- Sunrise
- 05:06
- Sunset
- 18:38
- Next sunrise
- 05:06
A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Sao_Paulo).
Day
- 1♃︎ Jupiter05:06 – 06:13
- 2♂︎ Mars06:13 – 07:21
- 3☉︎ Sun07:21 – 08:29
- 4♀︎ Venus08:29 – 09:36
- 5☿︎ Mercury09:36 – 10:44
- 6☽︎ Moon10:44 – 11:52
- 7♄︎ Saturn11:52 – 13:00
- 8♃︎ Jupiter13:00 – 14:07
- 9♂︎ Mars14:07 – 15:15
- 10☉︎ Sun15:15 – 16:23
- 11♀︎ Venus16:23 – 17:30
- 12☿︎ Mercury17:30 – 18:38
Night
- 1☽︎ Moon18:38 – 19:30
- 2♄︎ Saturn19:30 – 20:23
- 3♃︎ Jupiter20:23 – 21:15
- 4♂︎ Mars21:15 – 22:07
- 5☉︎ Sun22:07 – 23:00
- 6♀︎ Venus23:00 – 23:52
- 7☿︎ Mercury23:52 – 00:44
- 8☽︎ Moon00:44 – 01:37
- 9♄︎ Saturn01:37 – 02:29
- 10♃︎ Jupiter02:29 – 03:21
- 11♂︎ Mars03:21 – 04:14
- 12☉︎ Sun04:14 – 05:06
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Thursday, 24 December 2026, the Sun rises at 05:06 and sets at 18:38: the day lasts 13h 33m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:06, lasts 10h 28m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Jupiter, from 05:06 to 06:13: 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.