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 Tuesday, 15 December 2026: day of Mars
- Sunrise
- 05:51
- 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♂︎ Mars05:51 – 07:02
- 2☉︎ Sun07:02 – 08:14
- 3♀︎ Venus08:14 – 09:25
- 4☿︎ Mercury09:25 – 10:36
- 5☽︎ Moon10:36 – 11:47
- 6♄︎ Saturn11:47 – 12:58
- 7♃︎ Jupiter12:58 – 14:09
- 8♂︎ Mars14:09 – 15:20
- 9☉︎ Sun15:20 – 16:31
- 10♀︎ Venus16:31 – 17:42
- 11☿︎ Mercury17:42 – 18:53
- 12☽︎ Moon18:53 – 20:04
Night
- 1♄︎ Saturn20:04 – 20:53
- 2♃︎ Jupiter20:53 – 21:42
- 3♂︎ Mars21:42 – 22:31
- 4☉︎ Sun22:31 – 23:20
- 5♀︎ Venus23:20 – 00:09
- 6☿︎ Mercury00:09 – 00:58
- 7☽︎ Moon00:58 – 01:47
- 8♄︎ Saturn01:47 – 02:36
- 9♃︎ Jupiter02:36 – 03:25
- 10♂︎ Mars03:25 – 04:14
- 11☉︎ Sun04:14 – 05:03
- 12♀︎ Venus05:03 – 05:52
Other cities · Argentina
Questions
How are the planetary hours calculated in Santa Fe?
On Tuesday, 15 December 2026, the Sun rises at 05:51 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?
Mars, from 05:51 to 07:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.