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 Friday, 3 July 2026: day of Venus
- Sunrise
- 08:06
- Sunset
- 17:42
- Next sunrise
- 08:06
A day hour lasts 48 min; a night hour, 1h 12m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus08:06 – 08:54
- 2☿︎ Mercury08:54 – 09:42
- 3☽︎ Moon09:42 – 10:30
- 4♄︎ Saturn10:30 – 11:18
- 5♃︎ Jupiter11:18 – 12:06
- 6♂︎ Mars12:06 – 12:54
- 7☉︎ Sun12:54 – 13:42
- 8♀︎ Venus13:42 – 14:30
- 9☿︎ Mercury14:30 – 15:18
- 10☽︎ Moon15:18 – 16:06
- 11♄︎ Saturn16:06 – 16:54
- 12♃︎ Jupiter16:54 – 17:42
Night
- 1♂︎ Mars17:42 – 18:54
- 2☉︎ Sun18:54 – 20:06
- 3♀︎ Venus20:06 – 21:18
- 4☿︎ Mercury21:18 – 22:30
- 5☽︎ Moon22:30 – 23:42
- 6♄︎ Saturn23:42 – 00:54
- 7♃︎ Jupiter00:54 – 02:06
- 8♂︎ Mars02:06 – 03:18
- 9☉︎ Sun03:18 – 04:30
- 10♀︎ Venus04:30 – 05:42
- 11☿︎ Mercury05:42 – 06:54
- 12☽︎ Moon06:54 – 08:06
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Friday, 3 July 2026, the Sun rises at 08:06 and sets at 17:42: the day lasts 9h 35m, that is twelve day hours of 48 min. The night, until the next sunrise at 08:06, lasts 14h 24m: twelve night hours of 1h 12m.
Which planet rules the first hour that day?
Venus, from 08:06 to 08:54: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.