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 Saturday, 8 August 2026: day of Saturn
- Sunrise
- 07:40
- Sunset
- 18:17
- Next sunrise
- 07:39
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♄︎ Saturn07:40 – 08:33
- 2♃︎ Jupiter08:33 – 09:26
- 3♂︎ Mars09:26 – 10:20
- 4☉︎ Sun10:20 – 11:13
- 5♀︎ Venus11:13 – 12:06
- 6☿︎ Mercury12:06 – 12:59
- 7☽︎ Moon12:59 – 13:52
- 8♄︎ Saturn13:52 – 14:45
- 9♃︎ Jupiter14:45 – 15:38
- 10♂︎ Mars15:38 – 16:31
- 11☉︎ Sun16:31 – 17:24
- 12♀︎ Venus17:24 – 18:17
Night
- 1☿︎ Mercury18:17 – 19:24
- 2☽︎ Moon19:24 – 20:31
- 3♄︎ Saturn20:31 – 21:38
- 4♃︎ Jupiter21:38 – 22:45
- 5♂︎ Mars22:45 – 23:52
- 6☉︎ Sun23:52 – 00:58
- 7♀︎ Venus00:58 – 02:05
- 8☿︎ Mercury02:05 – 03:12
- 9☽︎ Moon03:12 – 04:19
- 10♄︎ Saturn04:19 – 05:26
- 11♃︎ Jupiter05:26 – 06:32
- 12♂︎ Mars06:32 – 07:39
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Saturday, 8 August 2026, the Sun rises at 07:40 and sets at 18:17: the day lasts 10h 37m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:39, lasts 13h 22m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Saturn, from 07:40 to 08:33: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.