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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 Friday, 11 December 2026: day of Venus

Sunrise
05:21
Sunset
20:06
Next sunrise
05:21

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

Day

  1. 1♀︎ Venus05:21 – 06:34
  2. 2☿︎ Mercury06:34 – 07:48
  3. 3☽︎ Moon07:48 – 09:02
  4. 4♄︎ Saturn09:02 – 10:16
  5. 5♃︎ Jupiter10:16 – 11:29
  6. 6♂︎ Mars11:29 – 12:43
  7. 7☉︎ Sun12:43 – 13:57
  8. 8♀︎ Venus13:57 – 15:11
  9. 9☿︎ Mercury15:11 – 16:24
  10. 10☽︎ Moon16:24 – 17:38
  11. 11♄︎ Saturn17:38 – 18:52
  12. 12♃︎ Jupiter18:52 – 20:06

Night

  1. 1♂︎ Mars20:06 – 20:52
  2. 2☉︎ Sun20:52 – 21:38
  3. 3♀︎ Venus21:38 – 22:24
  4. 4☿︎ Mercury22:24 – 23:11
  5. 5☽︎ Moon23:11 – 23:57
  6. 6♄︎ Saturn23:57 – 00:43
  7. 7♃︎ Jupiter00:43 – 01:29
  8. 8♂︎ Mars01:29 – 02:16
  9. 9☉︎ Sun02:16 – 03:02
  10. 10♀︎ Venus03:02 – 03:48
  11. 11☿︎ Mercury03:48 – 04:34
  12. 12☽︎ Moon04:34 – 05:21

Questions

How are the planetary hours calculated in Mar del Plata?

On Friday, 11 December 2026, the Sun rises at 05:21 and sets at 20:06: the day lasts 14h 45m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:21, lasts 9h 15m: twelve night hours of 46 min.

Which planet rules the first hour that day?

Venus, from 05:21 to 06:34: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.