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 Wednesday, 21 October 2026: day of Mercury
- Sunrise
- 06:14
- Sunset
- 19:33
- Next sunrise
- 06:12
A day hour lasts 1h 07m; a night hour, 53 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury06:14 – 07:20
- 2☽︎ Moon07:20 – 08:27
- 3♄︎ Saturn08:27 – 09:34
- 4♃︎ Jupiter09:34 – 10:40
- 5♂︎ Mars10:40 – 11:47
- 6☉︎ Sun11:47 – 12:54
- 7♀︎ Venus12:54 – 14:00
- 8☿︎ Mercury14:00 – 15:07
- 9☽︎ Moon15:07 – 16:13
- 10♄︎ Saturn16:13 – 17:20
- 11♃︎ Jupiter17:20 – 18:27
- 12♂︎ Mars18:27 – 19:33
Night
- 1☉︎ Sun19:33 – 20:27
- 2♀︎ Venus20:27 – 21:20
- 3☿︎ Mercury21:20 – 22:13
- 4☽︎ Moon22:13 – 23:06
- 5♄︎ Saturn23:06 – 00:00
- 6♃︎ Jupiter00:00 – 00:53
- 7♂︎ Mars00:53 – 01:46
- 8☉︎ Sun01:46 – 02:39
- 9♀︎ Venus02:39 – 03:33
- 10☿︎ Mercury03:33 – 04:26
- 11☽︎ Moon04:26 – 05:19
- 12♄︎ Saturn05:19 – 06:12
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Wednesday, 21 October 2026, the Sun rises at 06:14 and sets at 19:33: the day lasts 13h 19m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 06:12, lasts 10h 39m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Mercury, from 06:14 to 07:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.