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 Saturday, 15 August 2026: day of Saturn
- Sunrise
- 07:35
- Sunset
- 18:14
- Next sunrise
- 07:33
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♄︎ Saturn07:35 – 08:28
- 2♃︎ Jupiter08:28 – 09:21
- 3♂︎ Mars09:21 – 10:15
- 4☉︎ Sun10:15 – 11:08
- 5♀︎ Venus11:08 – 12:01
- 6☿︎ Mercury12:01 – 12:54
- 7☽︎ Moon12:54 – 13:48
- 8♄︎ Saturn13:48 – 14:41
- 9♃︎ Jupiter14:41 – 15:34
- 10♂︎ Mars15:34 – 16:28
- 11☉︎ Sun16:28 – 17:21
- 12♀︎ Venus17:21 – 18:14
Night
- 1☿︎ Mercury18:14 – 19:21
- 2☽︎ Moon19:21 – 20:27
- 3♄︎ Saturn20:27 – 21:34
- 4♃︎ Jupiter21:34 – 22:41
- 5♂︎ Mars22:41 – 23:47
- 6☉︎ Sun23:47 – 00:54
- 7♀︎ Venus00:54 – 02:00
- 8☿︎ Mercury02:00 – 03:07
- 9☽︎ Moon03:07 – 04:14
- 10♄︎ Saturn04:14 – 05:20
- 11♃︎ Jupiter05:20 – 06:27
- 12♂︎ Mars06:27 – 07:33
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Saturday, 15 August 2026, the Sun rises at 07:35 and sets at 18:14: the day lasts 10h 40m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:33, lasts 13h 19m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Saturn, from 07:35 to 08:28: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.