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, 31 August 2026: day of the Moon
- Sunrise
- 07:13
- Sunset
- 18:28
- Next sunrise
- 07:11
A day hour lasts 56 min; a night hour, 1h 04m. Local time (America/Argentina/Buenos_Aires).
Day
- 1☽︎ Moon07:13 – 08:09
- 2♄︎ Saturn08:09 – 09:05
- 3♃︎ Jupiter09:05 – 10:02
- 4♂︎ Mars10:02 – 10:58
- 5☉︎ Sun10:58 – 11:54
- 6♀︎ Venus11:54 – 12:50
- 7☿︎ Mercury12:50 – 13:47
- 8☽︎ Moon13:47 – 14:43
- 9♄︎ Saturn14:43 – 15:39
- 10♃︎ Jupiter15:39 – 16:35
- 11♂︎ Mars16:35 – 17:32
- 12☉︎ Sun17:32 – 18:28
Night
- 1♀︎ Venus18:28 – 19:31
- 2☿︎ Mercury19:31 – 20:35
- 3☽︎ Moon20:35 – 21:39
- 4♄︎ Saturn21:39 – 22:42
- 5♃︎ Jupiter22:42 – 23:46
- 6♂︎ Mars23:46 – 00:50
- 7☉︎ Sun00:50 – 01:53
- 8♀︎ Venus01:53 – 02:57
- 9☿︎ Mercury02:57 – 04:00
- 10☽︎ Moon04:00 – 05:04
- 11♄︎ Saturn05:04 – 06:08
- 12♃︎ Jupiter06:08 – 07:11
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Monday, 31 August 2026, the Sun rises at 07:13 and sets at 18:28: the day lasts 11h 15m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:11, lasts 12h 44m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
The Moon, from 07:13 to 08:09: 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.
On a computer? Scan this code with your phone.
Calendars
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.