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 Friday, 31 July 2026: day of Venus
- Sunrise
- 07:51
- Sunset
- 18:26
- Next sunrise
- 07:51
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Argentina/Cordoba).
Day
- 1♀︎ Venus07:51 – 08:44
- 2☿︎ Mercury08:44 – 09:37
- 3☽︎ Moon09:37 – 10:30
- 4♄︎ Saturn10:30 – 11:23
- 5♃︎ Jupiter11:23 – 12:16
- 6♂︎ Mars12:16 – 13:09
- 7☉︎ Sun13:09 – 14:02
- 8♀︎ Venus14:02 – 14:55
- 9☿︎ Mercury14:55 – 15:48
- 10☽︎ Moon15:48 – 16:41
- 11♄︎ Saturn16:41 – 17:34
- 12♃︎ Jupiter17:34 – 18:26
Night
- 1♂︎ Mars18:26 – 19:33
- 2☉︎ Sun19:33 – 20:40
- 3♀︎ Venus20:40 – 21:48
- 4☿︎ Mercury21:48 – 22:55
- 5☽︎ Moon22:55 – 00:02
- 6♄︎ Saturn00:02 – 01:09
- 7♃︎ Jupiter01:09 – 02:16
- 8♂︎ Mars02:16 – 03:23
- 9☉︎ Sun03:23 – 04:30
- 10♀︎ Venus04:30 – 05:37
- 11☿︎ Mercury05:37 – 06:44
- 12☽︎ Moon06:44 – 07:51
Other cities · Argentina
Questions
How are the planetary hours calculated in Santa Fe?
On Friday, 31 July 2026, the Sun rises at 07:51 and sets at 18:26: the day lasts 10h 35m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:51, lasts 13h 24m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Venus, from 07:51 to 08:44: 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.