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 Sunday, 27 December 2026: day of the Sun
- Sunrise
- 05:27
- Sunset
- 20:15
- Next sunrise
- 05:28
A day hour lasts 1h 14m; a night hour, 46 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun05:27 – 06:41
- 2♀︎ Venus06:41 – 07:55
- 3☿︎ Mercury07:55 – 09:09
- 4☽︎ Moon09:09 – 10:23
- 5♄︎ Saturn10:23 – 11:37
- 6♃︎ Jupiter11:37 – 12:51
- 7♂︎ Mars12:51 – 14:05
- 8☉︎ Sun14:05 – 15:19
- 9♀︎ Venus15:19 – 16:33
- 10☿︎ Mercury16:33 – 17:47
- 11☽︎ Moon17:47 – 19:01
- 12♄︎ Saturn19:01 – 20:15
Night
- 1♃︎ Jupiter20:15 – 21:01
- 2♂︎ Mars21:01 – 21:47
- 3☉︎ Sun21:47 – 22:33
- 4♀︎ Venus22:33 – 23:19
- 5☿︎ Mercury23:19 – 00:05
- 6☽︎ Moon00:05 – 00:51
- 7♄︎ Saturn00:51 – 01:37
- 8♃︎ Jupiter01:37 – 02:23
- 9♂︎ Mars02:23 – 03:09
- 10☉︎ Sun03:09 – 03:56
- 11♀︎ Venus03:56 – 04:42
- 12☿︎ Mercury04:42 – 05:28
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Sunday, 27 December 2026, the Sun rises at 05:27 and sets at 20:15: the day lasts 14h 47m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:28, lasts 9h 13m: twelve night hours of 46 min.
Which planet rules the first hour that day?
The Sun, from 05:27 to 06:41: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.