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 December 2027: day of Venus
- Sunrise
- 05:21
- Sunset
- 19:59
- Next sunrise
- 05:20
A day hour lasts 1h 13m; a night hour, 47 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus05:21 – 06:34
- 2☿︎ Mercury06:34 – 07:47
- 3☽︎ Moon07:47 – 09:00
- 4♄︎ Saturn09:00 – 10:13
- 5♃︎ Jupiter10:13 – 11:26
- 6♂︎ Mars11:26 – 12:40
- 7☉︎ Sun12:40 – 13:53
- 8♀︎ Venus13:53 – 15:06
- 9☿︎ Mercury15:06 – 16:19
- 10☽︎ Moon16:19 – 17:32
- 11♄︎ Saturn17:32 – 18:46
- 12♃︎ Jupiter18:46 – 19:59
Night
- 1♂︎ Mars19:59 – 20:45
- 2☉︎ Sun20:45 – 21:32
- 3♀︎ Venus21:32 – 22:19
- 4☿︎ Mercury22:19 – 23:06
- 5☽︎ Moon23:06 – 23:53
- 6♄︎ Saturn23:53 – 00:40
- 7♃︎ Jupiter00:40 – 01:26
- 8♂︎ Mars01:26 – 02:13
- 9☉︎ Sun02:13 – 03:00
- 10♀︎ Venus03:00 – 03:47
- 11☿︎ Mercury03:47 – 04:34
- 12☽︎ Moon04:34 – 05:20
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Friday, 3 December 2027, the Sun rises at 05:21 and sets at 19:59: the day lasts 14h 38m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 05:20, lasts 9h 22m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Venus, from 05:21 to 06:34: 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.