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 Tuesday, 15 December 2026: day of Mars
- Sunrise
- 05:38
- Sunset
- 20:30
- Next sunrise
- 05:38
A day hour lasts 1h 14m; a night hour, 46 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars05:38 – 06:52
- 2☉︎ Sun06:52 – 08:07
- 3♀︎ Venus08:07 – 09:21
- 4☿︎ Mercury09:21 – 10:35
- 5☽︎ Moon10:35 – 11:50
- 6♄︎ Saturn11:50 – 13:04
- 7♃︎ Jupiter13:04 – 14:18
- 8♂︎ Mars14:18 – 15:32
- 9☉︎ Sun15:32 – 16:47
- 10♀︎ Venus16:47 – 18:01
- 11☿︎ Mercury18:01 – 19:15
- 12☽︎ Moon19:15 – 20:30
Night
- 1♄︎ Saturn20:30 – 21:15
- 2♃︎ Jupiter21:15 – 22:01
- 3♂︎ Mars22:01 – 22:47
- 4☉︎ Sun22:47 – 23:33
- 5♀︎ Venus23:33 – 00:18
- 6☿︎ Mercury00:18 – 01:04
- 7☽︎ Moon01:04 – 01:50
- 8♄︎ Saturn01:50 – 02:35
- 9♃︎ Jupiter02:35 – 03:21
- 10♂︎ Mars03:21 – 04:07
- 11☉︎ Sun04:07 – 04:53
- 12♀︎ Venus04:53 – 05:38
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Tuesday, 15 December 2026, the Sun rises at 05:38 and sets at 20:30: the day lasts 14h 52m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:38, lasts 9h 09m: twelve night hours of 46 min.
Which planet rules the first hour that day?
Mars, from 05:38 to 06:52: 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.