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, 25 October 2026: day of the Sun
- Sunrise
- 05:51
- Sunset
- 19:18
- Next sunrise
- 05:49
A day hour lasts 1h 07m; a night hour, 53 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun05:51 – 06:58
- 2♀︎ Venus06:58 – 08:05
- 3☿︎ Mercury08:05 – 09:12
- 4☽︎ Moon09:12 – 10:20
- 5♄︎ Saturn10:20 – 11:27
- 6♃︎ Jupiter11:27 – 12:34
- 7♂︎ Mars12:34 – 13:41
- 8☉︎ Sun13:41 – 14:49
- 9♀︎ Venus14:49 – 15:56
- 10☿︎ Mercury15:56 – 17:03
- 11☽︎ Moon17:03 – 18:10
- 12♄︎ Saturn18:10 – 19:18
Night
- 1♃︎ Jupiter19:18 – 20:10
- 2♂︎ Mars20:10 – 21:03
- 3☉︎ Sun21:03 – 21:56
- 4♀︎ Venus21:56 – 22:48
- 5☿︎ Mercury22:48 – 23:41
- 6☽︎ Moon23:41 – 00:33
- 7♄︎ Saturn00:33 – 01:26
- 8♃︎ Jupiter01:26 – 02:19
- 9♂︎ Mars02:19 – 03:11
- 10☉︎ Sun03:11 – 04:04
- 11♀︎ Venus04:04 – 04:57
- 12☿︎ Mercury04:57 – 05:49
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Sunday, 25 October 2026, the Sun rises at 05:51 and sets at 19:18: the day lasts 13h 27m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:49, lasts 10h 32m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Sun, from 05:51 to 06:58: 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.