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, 28 October 2026: day of Mercury
- Sunrise
- 05:47
- Sunset
- 19:21
- Next sunrise
- 05:46
A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury05:47 – 06:55
- 2☽︎ Moon06:55 – 08:03
- 3♄︎ Saturn08:03 – 09:10
- 4♃︎ Jupiter09:10 – 10:18
- 5♂︎ Mars10:18 – 11:26
- 6☉︎ Sun11:26 – 12:34
- 7♀︎ Venus12:34 – 13:42
- 8☿︎ Mercury13:42 – 14:49
- 9☽︎ Moon14:49 – 15:57
- 10♄︎ Saturn15:57 – 17:05
- 11♃︎ Jupiter17:05 – 18:13
- 12♂︎ Mars18:13 – 19:21
Night
- 1☉︎ Sun19:21 – 20:13
- 2♀︎ Venus20:13 – 21:05
- 3☿︎ Mercury21:05 – 21:57
- 4☽︎ Moon21:57 – 22:49
- 5♄︎ Saturn22:49 – 23:41
- 6♃︎ Jupiter23:41 – 00:33
- 7♂︎ Mars00:33 – 01:25
- 8☉︎ Sun01:25 – 02:17
- 9♀︎ Venus02:17 – 03:10
- 10☿︎ Mercury03:10 – 04:02
- 11☽︎ Moon04:02 – 04:54
- 12♄︎ Saturn04:54 – 05:46
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Wednesday, 28 October 2026, the Sun rises at 05:47 and sets at 19:21: the day lasts 13h 34m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:46, lasts 10h 25m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Mercury, from 05:47 to 06:55: 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.