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 Monday, 19 October 2026: day of the Moon
- Sunrise
- 05:16
- Sunset
- 17:58
- Next sunrise
- 05:16
A day hour lasts 1h 03m; a night hour, 56 min. Local time (America/Sao_Paulo).
Day
- 1☽︎ Moon05:16 – 06:20
- 2♄︎ Saturn06:20 – 07:23
- 3♃︎ Jupiter07:23 – 08:27
- 4♂︎ Mars08:27 – 09:30
- 5☉︎ Sun09:30 – 10:34
- 6♀︎ Venus10:34 – 11:37
- 7☿︎ Mercury11:37 – 12:41
- 8☽︎ Moon12:41 – 13:44
- 9♄︎ Saturn13:44 – 14:48
- 10♃︎ Jupiter14:48 – 15:51
- 11♂︎ Mars15:51 – 16:55
- 12☉︎ Sun16:55 – 17:58
Night
- 1♀︎ Venus17:58 – 18:55
- 2☿︎ Mercury18:55 – 19:51
- 3☽︎ Moon19:51 – 20:48
- 4♄︎ Saturn20:48 – 21:44
- 5♃︎ Jupiter21:44 – 22:40
- 6♂︎ Mars22:40 – 23:37
- 7☉︎ Sun23:37 – 00:33
- 8♀︎ Venus00:33 – 01:30
- 9☿︎ Mercury01:30 – 02:26
- 10☽︎ Moon02:26 – 03:23
- 11♄︎ Saturn03:23 – 04:19
- 12♃︎ Jupiter04:19 – 05:16
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Monday, 19 October 2026, the Sun rises at 05:16 and sets at 17:58: the day lasts 12h 42m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:16, lasts 11h 17m: twelve night hours of 56 min.
Which planet rules the first hour that day?
The Moon, from 05:16 to 06:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.