Planetary hours
in Santa Fe.
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, 12 August 2026: day of Mercury
- Sunrise
- 07:41
- Sunset
- 18:34
- Next sunrise
- 07:40
A day hour lasts 54 min; a night hour, 1h 05m. Local time (America/Argentina/Cordoba).
Day
- 1☿︎ Mercury07:41 – 08:35
- 2☽︎ Moon08:35 – 09:30
- 3♄︎ Saturn09:30 – 10:24
- 4♃︎ Jupiter10:24 – 11:19
- 5♂︎ Mars11:19 – 12:13
- 6☉︎ Sun12:13 – 13:08
- 7♀︎ Venus13:08 – 14:02
- 8☿︎ Mercury14:02 – 14:56
- 9☽︎ Moon14:56 – 15:51
- 10♄︎ Saturn15:51 – 16:45
- 11♃︎ Jupiter16:45 – 17:40
- 12♂︎ Mars17:40 – 18:34
Night
- 1☉︎ Sun18:34 – 19:40
- 2♀︎ Venus19:40 – 20:45
- 3☿︎ Mercury20:45 – 21:51
- 4☽︎ Moon21:51 – 22:56
- 5♄︎ Saturn22:56 – 00:02
- 6♃︎ Jupiter00:02 – 01:07
- 7♂︎ Mars01:07 – 02:13
- 8☉︎ Sun02:13 – 03:18
- 9♀︎ Venus03:18 – 04:24
- 10☿︎ Mercury04:24 – 05:29
- 11☽︎ Moon05:29 – 06:35
- 12♄︎ Saturn06:35 – 07:40
Other cities · Argentina
Questions
How are the planetary hours calculated in Santa Fe?
On Wednesday, 12 August 2026, the Sun rises at 07:41 and sets at 18:34: the day lasts 10h 53m, that is twelve day hours of 54 min. The night, until the next sunrise at 07:40, lasts 13h 06m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Mercury, from 07:41 to 08:35: 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.