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 Wednesday, 26 August 2026: day of Mercury
- Sunrise
- 07:20
- Sunset
- 18:24
- Next sunrise
- 07:19
A day hour lasts 55 min; a night hour, 1h 05m. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury07:20 – 08:15
- 2☽︎ Moon08:15 – 09:11
- 3♄︎ Saturn09:11 – 10:06
- 4♃︎ Jupiter10:06 – 11:01
- 5♂︎ Mars11:01 – 11:56
- 6☉︎ Sun11:56 – 12:52
- 7♀︎ Venus12:52 – 13:47
- 8☿︎ Mercury13:47 – 14:42
- 9☽︎ Moon14:42 – 15:38
- 10♄︎ Saturn15:38 – 16:33
- 11♃︎ Jupiter16:33 – 17:28
- 12♂︎ Mars17:28 – 18:24
Night
- 1☉︎ Sun18:24 – 19:28
- 2♀︎ Venus19:28 – 20:33
- 3☿︎ Mercury20:33 – 21:37
- 4☽︎ Moon21:37 – 22:42
- 5♄︎ Saturn22:42 – 23:46
- 6♃︎ Jupiter23:46 – 00:51
- 7♂︎ Mars00:51 – 01:56
- 8☉︎ Sun01:56 – 03:00
- 9♀︎ Venus03:00 – 04:05
- 10☿︎ Mercury04:05 – 05:09
- 11☽︎ Moon05:09 – 06:14
- 12♄︎ Saturn06:14 – 07:19
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Wednesday, 26 August 2026, the Sun rises at 07:20 and sets at 18:24: the day lasts 11h 04m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:19, lasts 12h 55m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Mercury, from 07:20 to 08:15: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.