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, 19 May 2026: day of Mars
- Sunrise
- 07:47
- Sunset
- 17:45
- Next sunrise
- 07:48
A day hour lasts 50 min; a night hour, 1h 10m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars07:47 – 08:37
- 2☉︎ Sun08:37 – 09:27
- 3♀︎ Venus09:27 – 10:17
- 4☿︎ Mercury10:17 – 11:06
- 5☽︎ Moon11:06 – 11:56
- 6♄︎ Saturn11:56 – 12:46
- 7♃︎ Jupiter12:46 – 13:36
- 8♂︎ Mars13:36 – 14:26
- 9☉︎ Sun14:26 – 15:16
- 10♀︎ Venus15:16 – 16:05
- 11☿︎ Mercury16:05 – 16:55
- 12☽︎ Moon16:55 – 17:45
Night
- 1♄︎ Saturn17:45 – 18:55
- 2♃︎ Jupiter18:55 – 20:06
- 3♂︎ Mars20:06 – 21:16
- 4☉︎ Sun21:16 – 22:26
- 5♀︎ Venus22:26 – 23:36
- 6☿︎ Mercury23:36 – 00:46
- 7☽︎ Moon00:46 – 01:57
- 8♄︎ Saturn01:57 – 03:07
- 9♃︎ Jupiter03:07 – 04:17
- 10♂︎ Mars04:17 – 05:27
- 11☉︎ Sun05:27 – 06:38
- 12♀︎ Venus06:38 – 07:48
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Tuesday, 19 May 2026, the Sun rises at 07:47 and sets at 17:45: the day lasts 9h 58m, that is twelve day hours of 50 min. The night, until the next sunrise at 07:48, lasts 14h 03m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
Mars, from 07:47 to 08:37: 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.