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 Tuesday, 13 October 2026: day of Mars
- Sunrise
- 06:13
- Sunset
- 19:06
- Next sunrise
- 06:12
A day hour lasts 1h 04m; a night hour, 56 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars06:13 – 07:18
- 2☉︎ Sun07:18 – 08:22
- 3♀︎ Venus08:22 – 09:26
- 4☿︎ Mercury09:26 – 10:31
- 5☽︎ Moon10:31 – 11:35
- 6♄︎ Saturn11:35 – 12:39
- 7♃︎ Jupiter12:39 – 13:44
- 8♂︎ Mars13:44 – 14:48
- 9☉︎ Sun14:48 – 15:53
- 10♀︎ Venus15:53 – 16:57
- 11☿︎ Mercury16:57 – 18:01
- 12☽︎ Moon18:01 – 19:06
Night
- 1♄︎ Saturn19:06 – 20:01
- 2♃︎ Jupiter20:01 – 20:57
- 3♂︎ Mars20:57 – 21:52
- 4☉︎ Sun21:52 – 22:48
- 5♀︎ Venus22:48 – 23:43
- 6☿︎ Mercury23:43 – 00:39
- 7☽︎ Moon00:39 – 01:34
- 8♄︎ Saturn01:34 – 02:30
- 9♃︎ Jupiter02:30 – 03:25
- 10♂︎ Mars03:25 – 04:21
- 11☉︎ Sun04:21 – 05:17
- 12♀︎ Venus05:17 – 06:12
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Tuesday, 13 October 2026, the Sun rises at 06:13 and sets at 19:06: the day lasts 12h 52m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:12, lasts 11h 06m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Mars, from 06:13 to 07:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.