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, 19 January 2027: day of Mars
- Sunrise
- 06:00
- Sunset
- 20:07
- Next sunrise
- 06:01
A day hour lasts 1h 11m; a night hour, 49 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars06:00 – 07:10
- 2☉︎ Sun07:10 – 08:21
- 3♀︎ Venus08:21 – 09:32
- 4☿︎ Mercury09:32 – 10:42
- 5☽︎ Moon10:42 – 11:53
- 6♄︎ Saturn11:53 – 13:04
- 7♃︎ Jupiter13:04 – 14:14
- 8♂︎ Mars14:14 – 15:25
- 9☉︎ Sun15:25 – 16:35
- 10♀︎ Venus16:35 – 17:46
- 11☿︎ Mercury17:46 – 18:57
- 12☽︎ Moon18:57 – 20:07
Night
- 1♄︎ Saturn20:07 – 20:57
- 2♃︎ Jupiter20:57 – 21:46
- 3♂︎ Mars21:46 – 22:36
- 4☉︎ Sun22:36 – 23:25
- 5♀︎ Venus23:25 – 00:15
- 6☿︎ Mercury00:15 – 01:04
- 7☽︎ Moon01:04 – 01:53
- 8♄︎ Saturn01:53 – 02:43
- 9♃︎ Jupiter02:43 – 03:32
- 10♂︎ Mars03:32 – 04:22
- 11☉︎ Sun04:22 – 05:11
- 12♀︎ Venus05:11 – 06:01
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Tuesday, 19 January 2027, the Sun rises at 06:00 and sets at 20:07: the day lasts 14h 07m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 06:01, lasts 9h 54m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mars, from 06:00 to 07:10: 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.