Planetary hours
in Buenos Aires.
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 Friday, 20 November 2026: day of Venus
- Sunrise
- 05:37
- Sunset
- 19:41
- Next sunrise
- 05:36
A day hour lasts 1h 10m; a night hour, 50 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus05:37 – 06:47
- 2☿︎ Mercury06:47 – 07:58
- 3☽︎ Moon07:58 – 09:08
- 4♄︎ Saturn09:08 – 10:18
- 5♃︎ Jupiter10:18 – 11:29
- 6♂︎ Mars11:29 – 12:39
- 7☉︎ Sun12:39 – 13:49
- 8♀︎ Venus13:49 – 15:00
- 9☿︎ Mercury15:00 – 16:10
- 10☽︎ Moon16:10 – 17:20
- 11♄︎ Saturn17:20 – 18:31
- 12♃︎ Jupiter18:31 – 19:41
Night
- 1♂︎ Mars19:41 – 20:31
- 2☉︎ Sun20:31 – 21:20
- 3♀︎ Venus21:20 – 22:10
- 4☿︎ Mercury22:10 – 22:59
- 5☽︎ Moon22:59 – 23:49
- 6♄︎ Saturn23:49 – 00:39
- 7♃︎ Jupiter00:39 – 01:28
- 8♂︎ Mars01:28 – 02:18
- 9☉︎ Sun02:18 – 03:08
- 10♀︎ Venus03:08 – 03:57
- 11☿︎ Mercury03:57 – 04:47
- 12☽︎ Moon04:47 – 05:36
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Friday, 20 November 2026, the Sun rises at 05:37 and sets at 19:41: the day lasts 14h 04m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 05:36, lasts 9h 55m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Venus, from 05:37 to 06:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.