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 Tuesday, 28 July 2026: day of Mars
- Sunrise
- 07:54
- Sunset
- 17:59
- Next sunrise
- 07:53
A day hour lasts 50 min; a night hour, 1h 09m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars07:54 – 08:44
- 2☉︎ Sun08:44 – 09:35
- 3♀︎ Venus09:35 – 10:25
- 4☿︎ Mercury10:25 – 11:16
- 5☽︎ Moon11:16 – 12:06
- 6♄︎ Saturn12:06 – 12:56
- 7♃︎ Jupiter12:56 – 13:47
- 8♂︎ Mars13:47 – 14:37
- 9☉︎ Sun14:37 – 15:28
- 10♀︎ Venus15:28 – 16:18
- 11☿︎ Mercury16:18 – 17:09
- 12☽︎ Moon17:09 – 17:59
Night
- 1♄︎ Saturn17:59 – 19:09
- 2♃︎ Jupiter19:09 – 20:18
- 3♂︎ Mars20:18 – 21:28
- 4☉︎ Sun21:28 – 22:37
- 5♀︎ Venus22:37 – 23:47
- 6☿︎ Mercury23:47 – 00:56
- 7☽︎ Moon00:56 – 02:05
- 8♄︎ Saturn02:05 – 03:15
- 9♃︎ Jupiter03:15 – 04:24
- 10♂︎ Mars04:24 – 05:34
- 11☉︎ Sun05:34 – 06:43
- 12♀︎ Venus06:43 – 07:53
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Tuesday, 28 July 2026, the Sun rises at 07:54 and sets at 17:59: the day lasts 10h 05m, that is twelve day hours of 50 min. The night, until the next sunrise at 07:53, lasts 13h 54m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
Mars, from 07:54 to 08:44: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.