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, 5 August 2026: day of Mercury
- Sunrise
- 07:46
- Sunset
- 18:06
- Next sunrise
- 07:45
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury07:46 – 08:38
- 2☽︎ Moon08:38 – 09:29
- 3♄︎ Saturn09:29 – 10:21
- 4♃︎ Jupiter10:21 – 11:13
- 5♂︎ Mars11:13 – 12:04
- 6☉︎ Sun12:04 – 12:56
- 7♀︎ Venus12:56 – 13:48
- 8☿︎ Mercury13:48 – 14:39
- 9☽︎ Moon14:39 – 15:31
- 10♄︎ Saturn15:31 – 16:22
- 11♃︎ Jupiter16:22 – 17:14
- 12♂︎ Mars17:14 – 18:06
Night
- 1☉︎ Sun18:06 – 19:14
- 2♀︎ Venus19:14 – 20:22
- 3☿︎ Mercury20:22 – 21:31
- 4☽︎ Moon21:31 – 22:39
- 5♄︎ Saturn22:39 – 23:47
- 6♃︎ Jupiter23:47 – 00:55
- 7♂︎ Mars00:55 – 02:04
- 8☉︎ Sun02:04 – 03:12
- 9♀︎ Venus03:12 – 04:20
- 10☿︎ Mercury04:20 – 05:29
- 11☽︎ Moon05:29 – 06:37
- 12♄︎ Saturn06:37 – 07:45
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Wednesday, 5 August 2026, the Sun rises at 07:46 and sets at 18:06: the day lasts 10h 20m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:45, lasts 13h 39m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mercury, from 07:46 to 08:38: 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.