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 Sunday, 18 October 2026: day of the Sun
- Sunrise
- 06:42
- Sunset
- 19:29
- Next sunrise
- 06:41
A day hour lasts 1h 04m; a night hour, 56 min. Local time (America/Argentina/Tucuman).
Day
- 1☉︎ Sun06:42 – 07:46
- 2♀︎ Venus07:46 – 08:50
- 3☿︎ Mercury08:50 – 09:54
- 4☽︎ Moon09:54 – 10:58
- 5♄︎ Saturn10:58 – 12:02
- 6♃︎ Jupiter12:02 – 13:06
- 7♂︎ Mars13:06 – 14:10
- 8☉︎ Sun14:10 – 15:14
- 9♀︎ Venus15:14 – 16:18
- 10☿︎ Mercury16:18 – 17:21
- 11☽︎ Moon17:21 – 18:25
- 12♄︎ Saturn18:25 – 19:29
Night
- 1♃︎ Jupiter19:29 – 20:25
- 2♂︎ Mars20:25 – 21:21
- 3☉︎ Sun21:21 – 22:17
- 4♀︎ Venus22:17 – 23:13
- 5☿︎ Mercury23:13 – 00:09
- 6☽︎ Moon00:09 – 01:05
- 7♄︎ Saturn01:05 – 02:01
- 8♃︎ Jupiter02:01 – 02:57
- 9♂︎ Mars02:57 – 03:53
- 10☉︎ Sun03:53 – 04:49
- 11♀︎ Venus04:49 – 05:45
- 12☿︎ Mercury05:45 – 06:41
Other cities · Argentina
Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Sunday, 18 October 2026, the Sun rises at 06:42 and sets at 19:29: the day lasts 12h 48m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:41, lasts 11h 12m: twelve night hours of 56 min.
Which planet rules the first hour that day?
The Sun, from 06:42 to 07:46: 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.