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, 14 August 2026: day of Venus
- Sunrise
- 07:34
- Sunset
- 18:22
- Next sunrise
- 07:33
A day hour lasts 54 min; a night hour, 1h 06m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus07:34 – 08:28
- 2☿︎ Mercury08:28 – 09:22
- 3☽︎ Moon09:22 – 10:16
- 4♄︎ Saturn10:16 – 11:10
- 5♃︎ Jupiter11:10 – 12:04
- 6♂︎ Mars12:04 – 12:58
- 7☉︎ Sun12:58 – 13:52
- 8♀︎ Venus13:52 – 14:46
- 9☿︎ Mercury14:46 – 15:40
- 10☽︎ Moon15:40 – 16:34
- 11♄︎ Saturn16:34 – 17:28
- 12♃︎ Jupiter17:28 – 18:22
Night
- 1♂︎ Mars18:22 – 19:28
- 2☉︎ Sun19:28 – 20:34
- 3♀︎ Venus20:34 – 21:40
- 4☿︎ Mercury21:40 – 22:45
- 5☽︎ Moon22:45 – 23:51
- 6♄︎ Saturn23:51 – 00:57
- 7♃︎ Jupiter00:57 – 02:03
- 8♂︎ Mars02:03 – 03:09
- 9☉︎ Sun03:09 – 04:15
- 10♀︎ Venus04:15 – 05:21
- 11☿︎ Mercury05:21 – 06:27
- 12☽︎ Moon06:27 – 07:33
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Friday, 14 August 2026, the Sun rises at 07:34 and sets at 18:22: the day lasts 10h 48m, that is twelve day hours of 54 min. The night, until the next sunrise at 07:33, lasts 13h 11m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Venus, from 07:34 to 08:28: 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.