Planetary hours
in San Miguel de Tucumán.
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, 20 October 2026: day of Mars
- Sunrise
- 06:40
- Sunset
- 19:31
- Next sunrise
- 06:39
A day hour lasts 1h 04m; a night hour, 56 min. Local time (America/Argentina/Tucuman).
Day
- 1♂︎ Mars06:40 – 07:44
- 2☉︎ Sun07:44 – 08:48
- 3♀︎ Venus08:48 – 09:53
- 4☿︎ Mercury09:53 – 10:57
- 5☽︎ Moon10:57 – 12:01
- 6♄︎ Saturn12:01 – 13:05
- 7♃︎ Jupiter13:05 – 14:10
- 8♂︎ Mars14:10 – 15:14
- 9☉︎ Sun15:14 – 16:18
- 10♀︎ Venus16:18 – 17:22
- 11☿︎ Mercury17:22 – 18:26
- 12☽︎ Moon18:26 – 19:31
Night
- 1♄︎ Saturn19:31 – 20:26
- 2♃︎ Jupiter20:26 – 21:22
- 3♂︎ Mars21:22 – 22:18
- 4☉︎ Sun22:18 – 23:13
- 5♀︎ Venus23:13 – 00:09
- 6☿︎ Mercury00:09 – 01:05
- 7☽︎ Moon01:05 – 02:01
- 8♄︎ Saturn02:01 – 02:56
- 9♃︎ Jupiter02:56 – 03:52
- 10♂︎ Mars03:52 – 04:48
- 11☉︎ Sun04:48 – 05:43
- 12♀︎ Venus05:43 – 06:39
Other cities · Argentina
Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Tuesday, 20 October 2026, the Sun rises at 06:40 and sets at 19:31: the day lasts 12h 51m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:39, lasts 11h 09m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Mars, from 06:40 to 07:44: 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.