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 September 2026: day of the Sun
- Sunrise
- 06:31
- Sunset
- 18:51
- Next sunrise
- 06:30
A day hour lasts 1h 02m; a night hour, 58 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun06:31 – 07:33
- 2♀︎ Venus07:33 – 08:34
- 3☿︎ Mercury08:34 – 09:36
- 4☽︎ Moon09:36 – 10:38
- 5♄︎ Saturn10:38 – 11:39
- 6♃︎ Jupiter11:39 – 12:41
- 7♂︎ Mars12:41 – 13:43
- 8☉︎ Sun13:43 – 14:44
- 9♀︎ Venus14:44 – 15:46
- 10☿︎ Mercury15:46 – 16:48
- 11☽︎ Moon16:48 – 17:49
- 12♄︎ Saturn17:49 – 18:51
Night
- 1♃︎ Jupiter18:51 – 19:49
- 2♂︎ Mars19:49 – 20:47
- 3☉︎ Sun20:47 – 21:45
- 4♀︎ Venus21:45 – 22:44
- 5☿︎ Mercury22:44 – 23:42
- 6☽︎ Moon23:42 – 00:40
- 7♄︎ Saturn00:40 – 01:38
- 8♃︎ Jupiter01:38 – 02:37
- 9♂︎ Mars02:37 – 03:35
- 10☉︎ Sun03:35 – 04:33
- 11♀︎ Venus04:33 – 05:31
- 12☿︎ Mercury05:31 – 06:30
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Sunday, 27 September 2026, the Sun rises at 06:31 and sets at 18:51: the day lasts 12h 20m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:30, lasts 11h 39m: twelve night hours of 58 min.
Which planet rules the first hour that day?
The Sun, from 06:31 to 07:33: 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.