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 Wednesday, 30 September 2026: day of Mercury
- Sunrise
- 06:27
- Sunset
- 18:53
- Next sunrise
- 06:25
A day hour lasts 1h 02m; a night hour, 58 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury06:27 – 07:29
- 2☽︎ Moon07:29 – 08:31
- 3♄︎ Saturn08:31 – 09:33
- 4♃︎ Jupiter09:33 – 10:35
- 5♂︎ Mars10:35 – 11:38
- 6☉︎ Sun11:38 – 12:40
- 7♀︎ Venus12:40 – 13:42
- 8☿︎ Mercury13:42 – 14:44
- 9☽︎ Moon14:44 – 15:47
- 10♄︎ Saturn15:47 – 16:49
- 11♃︎ Jupiter16:49 – 17:51
- 12♂︎ Mars17:51 – 18:53
Night
- 1☉︎ Sun18:53 – 19:51
- 2♀︎ Venus19:51 – 20:49
- 3☿︎ Mercury20:49 – 21:46
- 4☽︎ Moon21:46 – 22:44
- 5♄︎ Saturn22:44 – 23:42
- 6♃︎ Jupiter23:42 – 00:39
- 7♂︎ Mars00:39 – 01:37
- 8☉︎ Sun01:37 – 02:34
- 9♀︎ Venus02:34 – 03:32
- 10☿︎ Mercury03:32 – 04:30
- 11☽︎ Moon04:30 – 05:27
- 12♄︎ Saturn05:27 – 06:25
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Wednesday, 30 September 2026, the Sun rises at 06:27 and sets at 18:53: the day lasts 12h 27m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:25, lasts 11h 32m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mercury, from 06:27 to 07:29: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.