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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 Thursday, 17 December 2026: day of Jupiter

Sunrise
05:22
Sunset
20:10
Next sunrise
05:22

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

Day

  1. 1♃︎ Jupiter05:22 – 06:36
  2. 2♂︎ Mars06:36 – 07:50
  3. 3☉︎ Sun07:50 – 09:04
  4. 4♀︎ Venus09:04 – 10:18
  5. 5☿︎ Mercury10:18 – 11:32
  6. 6☽︎ Moon11:32 – 12:46
  7. 7♄︎ Saturn12:46 – 14:00
  8. 8♃︎ Jupiter14:00 – 15:14
  9. 9♂︎ Mars15:14 – 16:28
  10. 10☉︎ Sun16:28 – 17:42
  11. 11♀︎ Venus17:42 – 18:56
  12. 12☿︎ Mercury18:56 – 20:10

Night

  1. 1☽︎ Moon20:10 – 20:56
  2. 2♄︎ Saturn20:56 – 21:42
  3. 3♃︎ Jupiter21:42 – 22:28
  4. 4♂︎ Mars22:28 – 23:14
  5. 5☉︎ Sun23:14 – 00:00
  6. 6♀︎ Venus00:00 – 00:46
  7. 7☿︎ Mercury00:46 – 01:32
  8. 8☽︎ Moon01:32 – 02:18
  9. 9♄︎ Saturn02:18 – 03:04
  10. 10♃︎ Jupiter03:04 – 03:50
  11. 11♂︎ Mars03:50 – 04:36
  12. 12☉︎ Sun04:36 – 05:22

Questions

How are the planetary hours calculated in Mar del Plata?

On Thursday, 17 December 2026, the Sun rises at 05:22 and sets at 20:10: the day lasts 14h 48m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:22, lasts 9h 12m: twelve night hours of 46 min.

Which planet rules the first hour that day?

Jupiter, from 05:22 to 06:36: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.