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 Sunday, 16 August 2026: day of the Sun
- Sunrise
- 07:37
- Sunset
- 18:37
- Next sunrise
- 07:36
A day hour lasts 55 min; a night hour, 1h 05m. Local time (America/Argentina/Cordoba).
Day
- 1☉︎ Sun07:37 – 08:32
- 2♀︎ Venus08:32 – 09:27
- 3☿︎ Mercury09:27 – 10:22
- 4☽︎ Moon10:22 – 11:17
- 5♄︎ Saturn11:17 – 12:12
- 6♃︎ Jupiter12:12 – 13:07
- 7♂︎ Mars13:07 – 14:02
- 8☉︎ Sun14:02 – 14:57
- 9♀︎ Venus14:57 – 15:52
- 10☿︎ Mercury15:52 – 16:47
- 11☽︎ Moon16:47 – 17:42
- 12♄︎ Saturn17:42 – 18:37
Night
- 1♃︎ Jupiter18:37 – 19:42
- 2♂︎ Mars19:42 – 20:46
- 3☉︎ Sun20:46 – 21:51
- 4♀︎ Venus21:51 – 22:56
- 5☿︎ Mercury22:56 – 00:01
- 6☽︎ Moon00:01 – 01:06
- 7♄︎ Saturn01:06 – 02:11
- 8♃︎ Jupiter02:11 – 03:16
- 9♂︎ Mars03:16 – 04:21
- 10☉︎ Sun04:21 – 05:26
- 11♀︎ Venus05:26 – 06:31
- 12☿︎ Mercury06:31 – 07:36
Other cities · Argentina
Questions
How are the planetary hours calculated in Santa Fe?
On Sunday, 16 August 2026, the Sun rises at 07:37 and sets at 18:37: the day lasts 11h 00m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:36, lasts 12h 59m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
The Sun, from 07:37 to 08:32: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.