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, 12 January 2027: day of Mars
- Sunrise
- 05:41
- Sunset
- 20:15
- Next sunrise
- 05:42
A day hour lasts 1h 13m; a night hour, 47 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars05:41 – 06:54
- 2☉︎ Sun06:54 – 08:06
- 3♀︎ Venus08:06 – 09:19
- 4☿︎ Mercury09:19 – 10:32
- 5☽︎ Moon10:32 – 11:45
- 6♄︎ Saturn11:45 – 12:58
- 7♃︎ Jupiter12:58 – 14:11
- 8♂︎ Mars14:11 – 15:23
- 9☉︎ Sun15:23 – 16:36
- 10♀︎ Venus16:36 – 17:49
- 11☿︎ Mercury17:49 – 19:02
- 12☽︎ Moon19:02 – 20:15
Night
- 1♄︎ Saturn20:15 – 21:02
- 2♃︎ Jupiter21:02 – 21:49
- 3♂︎ Mars21:49 – 22:37
- 4☉︎ Sun22:37 – 23:24
- 5♀︎ Venus23:24 – 00:11
- 6☿︎ Mercury00:11 – 00:58
- 7☽︎ Moon00:58 – 01:46
- 8♄︎ Saturn01:46 – 02:33
- 9♃︎ Jupiter02:33 – 03:20
- 10♂︎ Mars03:20 – 04:07
- 11☉︎ Sun04:07 – 04:55
- 12♀︎ Venus04:55 – 05:42
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Tuesday, 12 January 2027, the Sun rises at 05:41 and sets at 20:15: the day lasts 14h 34m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 05:42, lasts 9h 27m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Mars, from 05:41 to 06:54: 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.