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 Thursday, 17 December 2026: day of Jupiter
- Sunrise
- 05:39
- Sunset
- 20:31
- Next sunrise
- 05:39
A day hour lasts 1h 14m; a night hour, 46 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♃︎ Jupiter05:39 – 06:53
- 2♂︎ Mars06:53 – 08:07
- 3☉︎ Sun08:07 – 09:22
- 4♀︎ Venus09:22 – 10:36
- 5☿︎ Mercury10:36 – 11:50
- 6☽︎ Moon11:50 – 13:05
- 7♄︎ Saturn13:05 – 14:19
- 8♃︎ Jupiter14:19 – 15:34
- 9♂︎ Mars15:34 – 16:48
- 10☉︎ Sun16:48 – 18:02
- 11♀︎ Venus18:02 – 19:17
- 12☿︎ Mercury19:17 – 20:31
Night
- 1☽︎ Moon20:31 – 21:17
- 2♄︎ Saturn21:17 – 22:02
- 3♃︎ Jupiter22:02 – 22:48
- 4♂︎ Mars22:48 – 23:34
- 5☉︎ Sun23:34 – 00:19
- 6♀︎ Venus00:19 – 01:05
- 7☿︎ Mercury01:05 – 01:51
- 8☽︎ Moon01:51 – 02:36
- 9♄︎ Saturn02:36 – 03:22
- 10♃︎ Jupiter03:22 – 04:08
- 11♂︎ Mars04:08 – 04:53
- 12☉︎ Sun04:53 – 05:39
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Thursday, 17 December 2026, the Sun rises at 05:39 and sets at 20:31: the day lasts 14h 52m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:39, lasts 9h 08m: twelve night hours of 46 min.
Which planet rules the first hour that day?
Jupiter, from 05:39 to 06:53: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.