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 Saturday, 31 October 2026: day of Saturn
- Sunrise
- 05:08
- Sunset
- 18:04
- Next sunrise
- 05:07
A day hour lasts 1h 05m; a night hour, 55 min. Local time (America/Sao_Paulo).
Day
- 1♄︎ Saturn05:08 – 06:12
- 2♃︎ Jupiter06:12 – 07:17
- 3♂︎ Mars07:17 – 08:22
- 4☉︎ Sun08:22 – 09:27
- 5♀︎ Venus09:27 – 10:31
- 6☿︎ Mercury10:31 – 11:36
- 7☽︎ Moon11:36 – 12:41
- 8♄︎ Saturn12:41 – 13:45
- 9♃︎ Jupiter13:45 – 14:50
- 10♂︎ Mars14:50 – 15:55
- 11☉︎ Sun15:55 – 17:00
- 12♀︎ Venus17:00 – 18:04
Night
- 1☿︎ Mercury18:04 – 19:00
- 2☽︎ Moon19:00 – 19:55
- 3♄︎ Saturn19:55 – 20:50
- 4♃︎ Jupiter20:50 – 21:45
- 5♂︎ Mars21:45 – 22:40
- 6☉︎ Sun22:40 – 23:36
- 7♀︎ Venus23:36 – 00:31
- 8☿︎ Mercury00:31 – 01:26
- 9☽︎ Moon01:26 – 02:21
- 10♄︎ Saturn02:21 – 03:17
- 11♃︎ Jupiter03:17 – 04:12
- 12♂︎ Mars04:12 – 05:07
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Saturday, 31 October 2026, the Sun rises at 05:08 and sets at 18:04: the day lasts 12h 57m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:07, lasts 11h 03m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Saturn, from 05:08 to 06:12: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.