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 September 2026: day of Jupiter
- Sunrise
- 06:47
- Sunset
- 18:42
- Next sunrise
- 06:45
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♃︎ Jupiter06:47 – 07:46
- 2♂︎ Mars07:46 – 08:46
- 3☉︎ Sun08:46 – 09:46
- 4♀︎ Venus09:46 – 10:45
- 5☿︎ Mercury10:45 – 11:45
- 6☽︎ Moon11:45 – 12:44
- 7♄︎ Saturn12:44 – 13:44
- 8♃︎ Jupiter13:44 – 14:44
- 9♂︎ Mars14:44 – 15:43
- 10☉︎ Sun15:43 – 16:43
- 11♀︎ Venus16:43 – 17:43
- 12☿︎ Mercury17:43 – 18:42
Night
- 1☽︎ Moon18:42 – 19:42
- 2♄︎ Saturn19:42 – 20:43
- 3♃︎ Jupiter20:43 – 21:43
- 4♂︎ Mars21:43 – 22:43
- 5☉︎ Sun22:43 – 23:43
- 6♀︎ Venus23:43 – 00:44
- 7☿︎ Mercury00:44 – 01:44
- 8☽︎ Moon01:44 – 02:44
- 9♄︎ Saturn02:44 – 03:44
- 10♃︎ Jupiter03:44 – 04:45
- 11♂︎ Mars04:45 – 05:45
- 12☉︎ Sun05:45 – 06:45
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Thursday, 17 September 2026, the Sun rises at 06:47 and sets at 18:42: the day lasts 11h 55m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 06:45, lasts 12h 03m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Jupiter, from 06:47 to 07:46: 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.
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.