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, 21 May 2027: day of Venus
- Sunrise
- 07:48
- Sunset
- 17:44
- Next sunrise
- 07:49
A day hour lasts 50 min; a night hour, 1h 10m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus07:48 – 08:38
- 2☿︎ Mercury08:38 – 09:28
- 3☽︎ Moon09:28 – 10:17
- 4♄︎ Saturn10:17 – 11:07
- 5♃︎ Jupiter11:07 – 11:57
- 6♂︎ Mars11:57 – 12:46
- 7☉︎ Sun12:46 – 13:36
- 8♀︎ Venus13:36 – 14:25
- 9☿︎ Mercury14:25 – 15:15
- 10☽︎ Moon15:15 – 16:05
- 11♄︎ Saturn16:05 – 16:54
- 12♃︎ Jupiter16:54 – 17:44
Night
- 1♂︎ Mars17:44 – 18:54
- 2☉︎ Sun18:54 – 20:05
- 3♀︎ Venus20:05 – 21:15
- 4☿︎ Mercury21:15 – 22:26
- 5☽︎ Moon22:26 – 23:36
- 6♄︎ Saturn23:36 – 00:47
- 7♃︎ Jupiter00:47 – 01:57
- 8♂︎ Mars01:57 – 03:07
- 9☉︎ Sun03:07 – 04:18
- 10♀︎ Venus04:18 – 05:28
- 11☿︎ Mercury05:28 – 06:39
- 12☽︎ Moon06:39 – 07:49
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Friday, 21 May 2027, the Sun rises at 07:48 and sets at 17:44: the day lasts 9h 56m, that is twelve day hours of 50 min. The night, until the next sunrise at 07:49, lasts 14h 05m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
Venus, from 07:48 to 08:38: 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.