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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, 20 April 2026: day of the Moon

Sunrise
07:21
Sunset
18:16
Next sunrise
07:22

A day hour lasts 55 min; a night hour, 1h 06m. Local time (America/Argentina/Buenos_Aires).

Day

  1. 1☽︎ Moon07:21 – 08:16
  2. 2♄︎ Saturn08:16 – 09:10
  3. 3♃︎ Jupiter09:10 – 10:05
  4. 4♂︎ Mars10:05 – 10:59
  5. 5☉︎ Sun10:59 – 11:54
  6. 6♀︎ Venus11:54 – 12:48
  7. 7☿︎ Mercury12:48 – 13:43
  8. 8☽︎ Moon13:43 – 14:37
  9. 9♄︎ Saturn14:37 – 15:32
  10. 10♃︎ Jupiter15:32 – 16:26
  11. 11♂︎ Mars16:26 – 17:21
  12. 12☉︎ Sun17:21 – 18:16

Night

  1. 1♀︎ Venus18:16 – 19:21
  2. 2☿︎ Mercury19:21 – 20:27
  3. 3☽︎ Moon20:27 – 21:32
  4. 4♄︎ Saturn21:32 – 22:38
  5. 5♃︎ Jupiter22:38 – 23:43
  6. 6♂︎ Mars23:43 – 00:49
  7. 7☉︎ Sun00:49 – 01:54
  8. 8♀︎ Venus01:54 – 03:00
  9. 9☿︎ Mercury03:00 – 04:05
  10. 10☽︎ Moon04:05 – 05:11
  11. 11♄︎ Saturn05:11 – 06:17
  12. 12♃︎ Jupiter06:17 – 07:22

Questions

How are the planetary hours calculated in Mar del Plata?

On Monday, 20 April 2026, the Sun rises at 07:21 and sets at 18:16: the day lasts 10h 54m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:22, lasts 13h 07m: twelve night hours of 1h 06m.

Which planet rules the first hour that day?

The Moon, from 07:21 to 08:16: 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.