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 Saturday, 17 October 2026: day of Saturn
- Sunrise
- 06:01
- Sunset
- 19:09
- Next sunrise
- 06:00
A day hour lasts 1h 06m; a night hour, 54 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♄︎ Saturn06:01 – 07:07
- 2♃︎ Jupiter07:07 – 08:13
- 3♂︎ Mars08:13 – 09:18
- 4☉︎ Sun09:18 – 10:24
- 5♀︎ Venus10:24 – 11:30
- 6☿︎ Mercury11:30 – 12:35
- 7☽︎ Moon12:35 – 13:41
- 8♄︎ Saturn13:41 – 14:47
- 9♃︎ Jupiter14:47 – 15:52
- 10♂︎ Mars15:52 – 16:58
- 11☉︎ Sun16:58 – 18:04
- 12♀︎ Venus18:04 – 19:09
Night
- 1☿︎ Mercury19:09 – 20:04
- 2☽︎ Moon20:04 – 20:58
- 3♄︎ Saturn20:58 – 21:52
- 4♃︎ Jupiter21:52 – 22:46
- 5♂︎ Mars22:46 – 23:40
- 6☉︎ Sun23:40 – 00:35
- 7♀︎ Venus00:35 – 01:29
- 8☿︎ Mercury01:29 – 02:23
- 9☽︎ Moon02:23 – 03:17
- 10♄︎ Saturn03:17 – 04:12
- 11♃︎ Jupiter04:12 – 05:06
- 12♂︎ Mars05:06 – 06:00
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Saturday, 17 October 2026, the Sun rises at 06:01 and sets at 19:09: the day lasts 13h 08m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 06:00, lasts 10h 51m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Saturn, from 06:01 to 07:07: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.