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, 25 August 2026: day of Mars
- Sunrise
- 07:21
- Sunset
- 18:23
- Next sunrise
- 07:20
A day hour lasts 55 min; a night hour, 1h 05m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars07:21 – 08:16
- 2☉︎ Sun08:16 – 09:12
- 3♀︎ Venus09:12 – 10:07
- 4☿︎ Mercury10:07 – 11:02
- 5☽︎ Moon11:02 – 11:57
- 6♄︎ Saturn11:57 – 12:52
- 7♃︎ Jupiter12:52 – 13:47
- 8♂︎ Mars13:47 – 14:42
- 9☉︎ Sun14:42 – 15:37
- 10♀︎ Venus15:37 – 16:32
- 11☿︎ Mercury16:32 – 17:28
- 12☽︎ Moon17:28 – 18:23
Night
- 1♄︎ Saturn18:23 – 19:27
- 2♃︎ Jupiter19:27 – 20:32
- 3♂︎ Mars20:32 – 21:37
- 4☉︎ Sun21:37 – 22:42
- 5♀︎ Venus22:42 – 23:47
- 6☿︎ Mercury23:47 – 00:51
- 7☽︎ Moon00:51 – 01:56
- 8♄︎ Saturn01:56 – 03:01
- 9♃︎ Jupiter03:01 – 04:06
- 10♂︎ Mars04:06 – 05:10
- 11☉︎ Sun05:10 – 06:15
- 12♀︎ Venus06:15 – 07:20
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Tuesday, 25 August 2026, the Sun rises at 07:21 and sets at 18:23: the day lasts 11h 01m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:20, lasts 12h 57m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Mars, from 07:21 to 08:16: 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.