Planetary hours
in Bahía Blanca.
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, 11 December 2026: day of Venus
- Sunrise
- 05:37
- Sunset
- 20:27
- Next sunrise
- 05:37
A day hour lasts 1h 14m; a night hour, 46 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus05:37 – 06:51
- 2☿︎ Mercury06:51 – 08:05
- 3☽︎ Moon08:05 – 09:20
- 4♄︎ Saturn09:20 – 10:34
- 5♃︎ Jupiter10:34 – 11:48
- 6♂︎ Mars11:48 – 13:02
- 7☉︎ Sun13:02 – 14:16
- 8♀︎ Venus14:16 – 15:30
- 9☿︎ Mercury15:30 – 16:44
- 10☽︎ Moon16:44 – 17:59
- 11♄︎ Saturn17:59 – 19:13
- 12♃︎ Jupiter19:13 – 20:27
Night
- 1♂︎ Mars20:27 – 21:13
- 2☉︎ Sun21:13 – 21:59
- 3♀︎ Venus21:59 – 22:44
- 4☿︎ Mercury22:44 – 23:30
- 5☽︎ Moon23:30 – 00:16
- 6♄︎ Saturn00:16 – 01:02
- 7♃︎ Jupiter01:02 – 01:48
- 8♂︎ Mars01:48 – 02:34
- 9☉︎ Sun02:34 – 03:20
- 10♀︎ Venus03:20 – 04:06
- 11☿︎ Mercury04:06 – 04:51
- 12☽︎ Moon04:51 – 05:37
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Friday, 11 December 2026, the Sun rises at 05:37 and sets at 20:27: the day lasts 14h 50m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:37, lasts 9h 11m: twelve night hours of 46 min.
Which planet rules the first hour that day?
Venus, from 05:37 to 06:51: 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.