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, 16 December 2026: day of Mercury
- Sunrise
- 05:52
- Sunset
- 20:04
- Next sunrise
- 05:52
A day hour lasts 1h 11m; a night hour, 49 min. Local time (America/Argentina/Cordoba).
Day
- 1☿︎ Mercury05:52 – 07:03
- 2☽︎ Moon07:03 – 08:14
- 3♄︎ Saturn08:14 – 09:25
- 4♃︎ Jupiter09:25 – 10:36
- 5♂︎ Mars10:36 – 11:47
- 6☉︎ Sun11:47 – 12:58
- 7♀︎ Venus12:58 – 14:09
- 8☿︎ Mercury14:09 – 15:20
- 9☽︎ Moon15:20 – 16:31
- 10♄︎ Saturn16:31 – 17:42
- 11♃︎ Jupiter17:42 – 18:53
- 12♂︎ Mars18:53 – 20:04
Night
- 1☉︎ Sun20:04 – 20:53
- 2♀︎ Venus20:53 – 21:42
- 3☿︎ Mercury21:42 – 22:31
- 4☽︎ Moon22:31 – 23:20
- 5♄︎ Saturn23:20 – 00:09
- 6♃︎ Jupiter00:09 – 00:58
- 7♂︎ Mars00:58 – 01:47
- 8☉︎ Sun01:47 – 02:36
- 9♀︎ Venus02:36 – 03:25
- 10☿︎ Mercury03:25 – 04:14
- 11☽︎ Moon04:14 – 05:03
- 12♄︎ Saturn05:03 – 05:52
Other cities · Argentina
Questions
How are the planetary hours calculated in Santa Fe?
On Wednesday, 16 December 2026, the Sun rises at 05:52 and sets at 20:04: the day lasts 14h 12m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:52, lasts 9h 48m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mercury, from 05:52 to 07:03: 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.