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 Wednesday, 28 October 2026: day of Mercury
- Sunrise
- 05:55
- Sunset
- 19:19
- Next sunrise
- 05:54
A day hour lasts 1h 07m; a night hour, 53 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury05:55 – 07:02
- 2☽︎ Moon07:02 – 08:09
- 3♄︎ Saturn08:09 – 09:16
- 4♃︎ Jupiter09:16 – 10:23
- 5♂︎ Mars10:23 – 11:30
- 6☉︎ Sun11:30 – 12:37
- 7♀︎ Venus12:37 – 13:44
- 8☿︎ Mercury13:44 – 14:51
- 9☽︎ Moon14:51 – 15:58
- 10♄︎ Saturn15:58 – 17:05
- 11♃︎ Jupiter17:05 – 18:12
- 12♂︎ Mars18:12 – 19:19
Night
- 1☉︎ Sun19:19 – 20:12
- 2♀︎ Venus20:12 – 21:05
- 3☿︎ Mercury21:05 – 21:58
- 4☽︎ Moon21:58 – 22:51
- 5♄︎ Saturn22:51 – 23:44
- 6♃︎ Jupiter23:44 – 00:37
- 7♂︎ Mars00:37 – 01:30
- 8☉︎ Sun01:30 – 02:22
- 9♀︎ Venus02:22 – 03:15
- 10☿︎ Mercury03:15 – 04:08
- 11☽︎ Moon04:08 – 05:01
- 12♄︎ Saturn05:01 – 05:54
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Wednesday, 28 October 2026, the Sun rises at 05:55 and sets at 19:19: the day lasts 13h 23m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:54, lasts 10h 36m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Mercury, from 05:55 to 07:02: 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.