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, 17 July 2026: day of Venus
- Sunrise
- 07:59
- Sunset
- 18:18
- Next sunrise
- 07:59
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Argentina/Cordoba).
Day
- 1♀︎ Venus07:59 – 08:51
- 2☿︎ Mercury08:51 – 09:42
- 3☽︎ Moon09:42 – 10:34
- 4♄︎ Saturn10:34 – 11:26
- 5♃︎ Jupiter11:26 – 12:17
- 6♂︎ Mars12:17 – 13:09
- 7☉︎ Sun13:09 – 14:00
- 8♀︎ Venus14:00 – 14:52
- 9☿︎ Mercury14:52 – 15:43
- 10☽︎ Moon15:43 – 16:35
- 11♄︎ Saturn16:35 – 17:26
- 12♃︎ Jupiter17:26 – 18:18
Night
- 1♂︎ Mars18:18 – 19:26
- 2☉︎ Sun19:26 – 20:35
- 3♀︎ Venus20:35 – 21:43
- 4☿︎ Mercury21:43 – 22:52
- 5☽︎ Moon22:52 – 00:00
- 6♄︎ Saturn00:00 – 01:08
- 7♃︎ Jupiter01:08 – 02:17
- 8♂︎ Mars02:17 – 03:25
- 9☉︎ Sun03:25 – 04:34
- 10♀︎ Venus04:34 – 05:42
- 11☿︎ Mercury05:42 – 06:51
- 12☽︎ Moon06:51 – 07:59
Other cities · Argentina
Questions
How are the planetary hours calculated in Santa Fe?
On Friday, 17 July 2026, the Sun rises at 07:59 and sets at 18:18: the day lasts 10h 19m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:59, lasts 13h 41m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Venus, from 07:59 to 08:51: 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.