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Planetary hours · Mar del Plata (Argentina)

Planetary hours
in Mar del Plata.

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
05:24
Sunset
20:12
Next sunrise
05:24

A day hour lasts 1h 14m; a night hour, 46 min. Local time (America/Argentina/Buenos_Aires).

Day

  1. 1☽︎ Moon05:24 – 06:38
  2. 2♄︎ Saturn06:38 – 07:52
  3. 3♃︎ Jupiter07:52 – 09:06
  4. 4♂︎ Mars09:06 – 10:20
  5. 5☉︎ Sun10:20 – 11:34
  6. 6♀︎ Venus11:34 – 12:48
  7. 7☿︎ Mercury12:48 – 14:02
  8. 8☽︎ Moon14:02 – 15:16
  9. 9♄︎ Saturn15:16 – 16:30
  10. 10♃︎ Jupiter16:30 – 17:44
  11. 11♂︎ Mars17:44 – 18:58
  12. 12☉︎ Sun18:58 – 20:12

Night

  1. 1♀︎ Venus20:12 – 20:58
  2. 2☿︎ Mercury20:58 – 21:44
  3. 3☽︎ Moon21:44 – 22:30
  4. 4♄︎ Saturn22:30 – 23:16
  5. 5♃︎ Jupiter23:16 – 00:02
  6. 6♂︎ Mars00:02 – 00:48
  7. 7☉︎ Sun00:48 – 01:34
  8. 8♀︎ Venus01:34 – 02:20
  9. 9☿︎ Mercury02:20 – 03:06
  10. 10☽︎ Moon03:06 – 03:52
  11. 11♄︎ Saturn03:52 – 04:38
  12. 12♃︎ Jupiter04:38 – 05:24

Questions

How are the planetary hours calculated in Mar del Plata?

On Monday, 21 December 2026, the Sun rises at 05:24 and sets at 20:12: the day lasts 14h 49m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:24, lasts 9h 12m: twelve night hours of 46 min.

Which planet rules the first hour that day?

The Moon, from 05:24 to 06:38: 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.