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, 28 December 2026: day of the Moon
- Sunrise
- 05:28
- Sunset
- 20:15
- Next sunrise
- 05:28
A day hour lasts 1h 14m; a night hour, 46 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☽︎ Moon05:28 – 06:42
- 2♄︎ Saturn06:42 – 07:56
- 3♃︎ Jupiter07:56 – 09:10
- 4♂︎ Mars09:10 – 10:23
- 5☉︎ Sun10:23 – 11:37
- 6♀︎ Venus11:37 – 12:51
- 7☿︎ Mercury12:51 – 14:05
- 8☽︎ Moon14:05 – 15:19
- 9♄︎ Saturn15:19 – 16:33
- 10♃︎ Jupiter16:33 – 17:47
- 11♂︎ Mars17:47 – 19:01
- 12☉︎ Sun19:01 – 20:15
Night
- 1♀︎ Venus20:15 – 21:01
- 2☿︎ Mercury21:01 – 21:47
- 3☽︎ Moon21:47 – 22:33
- 4♄︎ Saturn22:33 – 23:19
- 5♃︎ Jupiter23:19 – 00:05
- 6♂︎ Mars00:05 – 00:52
- 7☉︎ Sun00:52 – 01:38
- 8♀︎ Venus01:38 – 02:24
- 9☿︎ Mercury02:24 – 03:10
- 10☽︎ Moon03:10 – 03:56
- 11♄︎ Saturn03:56 – 04:42
- 12♃︎ Jupiter04:42 – 05:28
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Monday, 28 December 2026, the Sun rises at 05:28 and sets at 20:15: the day lasts 14h 47m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:28, lasts 9h 14m: twelve night hours of 46 min.
Which planet rules the first hour that day?
The Moon, from 05:28 to 06:42: 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.