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Planetary hours · Rio de Janeiro (Brazil)

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, 21 December 2026: day of the Moon

Sunrise
05:04
Sunset
18:37
Next sunrise
05:04

A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Sao_Paulo).

Day

  1. 1☽︎ Moon05:04 – 06:12
  2. 2♄︎ Saturn06:12 – 07:19
  3. 3♃︎ Jupiter07:19 – 08:27
  4. 4♂︎ Mars08:27 – 09:35
  5. 5☉︎ Sun09:35 – 10:43
  6. 6♀︎ Venus10:43 – 11:50
  7. 7☿︎ Mercury11:50 – 12:58
  8. 8☽︎ Moon12:58 – 14:06
  9. 9♄︎ Saturn14:06 – 15:14
  10. 10♃︎ Jupiter15:14 – 16:21
  11. 11♂︎ Mars16:21 – 17:29
  12. 12☉︎ Sun17:29 – 18:37

Night

  1. 1♀︎ Venus18:37 – 19:29
  2. 2☿︎ Mercury19:29 – 20:21
  3. 3☽︎ Moon20:21 – 21:14
  4. 4♄︎ Saturn21:14 – 22:06
  5. 5♃︎ Jupiter22:06 – 22:58
  6. 6♂︎ Mars22:58 – 23:51
  7. 7☉︎ Sun23:51 – 00:43
  8. 8♀︎ Venus00:43 – 01:35
  9. 9☿︎ Mercury01:35 – 02:28
  10. 10☽︎ Moon02:28 – 03:20
  11. 11♄︎ Saturn03:20 – 04:12
  12. 12♃︎ Jupiter04:12 – 05:04

Questions

How are the planetary hours calculated in Rio de Janeiro?

On Monday, 21 December 2026, the Sun rises at 05:04 and sets at 18:37: the day lasts 13h 33m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:04, lasts 10h 28m: twelve night hours of 52 min.

Which planet rules the first hour that day?

The Moon, from 05:04 to 06:12: 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.

My sky on my chart

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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.