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, 22 August 2026: day of Saturn
- Sunrise
- 07:26
- Sunset
- 18:20
- Next sunrise
- 07:24
A day hour lasts 55 min; a night hour, 1h 05m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♄︎ Saturn07:26 – 08:20
- 2♃︎ Jupiter08:20 – 09:15
- 3♂︎ Mars09:15 – 10:09
- 4☉︎ Sun10:09 – 11:04
- 5♀︎ Venus11:04 – 11:58
- 6☿︎ Mercury11:58 – 12:53
- 7☽︎ Moon12:53 – 13:47
- 8♄︎ Saturn13:47 – 14:42
- 9♃︎ Jupiter14:42 – 15:37
- 10♂︎ Mars15:37 – 16:31
- 11☉︎ Sun16:31 – 17:26
- 12♀︎ Venus17:26 – 18:20
Night
- 1☿︎ Mercury18:20 – 19:26
- 2☽︎ Moon19:26 – 20:31
- 3♄︎ Saturn20:31 – 21:36
- 4♃︎ Jupiter21:36 – 22:42
- 5♂︎ Mars22:42 – 23:47
- 6☉︎ Sun23:47 – 00:52
- 7♀︎ Venus00:52 – 01:57
- 8☿︎ Mercury01:57 – 03:03
- 9☽︎ Moon03:03 – 04:08
- 10♄︎ Saturn04:08 – 05:13
- 11♃︎ Jupiter05:13 – 06:19
- 12♂︎ Mars06:19 – 07:24
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Saturday, 22 August 2026, the Sun rises at 07:26 and sets at 18:20: the day lasts 10h 55m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:24, lasts 13h 04m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Saturn, from 07:26 to 08:20: 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.