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 Friday, 20 June 2025: day of Venus
- Sunrise
- 08:08
- Sunset
- 18:36
- Next sunrise
- 08:09
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Argentina/Tucuman).
Day
- 1♀︎ Venus08:08 – 09:01
- 2☿︎ Mercury09:01 – 09:53
- 3☽︎ Moon09:53 – 10:45
- 4♄︎ Saturn10:45 – 11:38
- 5♃︎ Jupiter11:38 – 12:30
- 6♂︎ Mars12:30 – 13:22
- 7☉︎ Sun13:22 – 14:14
- 8♀︎ Venus14:14 – 15:07
- 9☿︎ Mercury15:07 – 15:59
- 10☽︎ Moon15:59 – 16:51
- 11♄︎ Saturn16:51 – 17:43
- 12♃︎ Jupiter17:43 – 18:36
Night
- 1♂︎ Mars18:36 – 19:43
- 2☉︎ Sun19:43 – 20:51
- 3♀︎ Venus20:51 – 21:59
- 4☿︎ Mercury21:59 – 23:07
- 5☽︎ Moon23:07 – 00:14
- 6♄︎ Saturn00:14 – 01:22
- 7♃︎ Jupiter01:22 – 02:30
- 8♂︎ Mars02:30 – 03:38
- 9☉︎ Sun03:38 – 04:45
- 10♀︎ Venus04:45 – 05:53
- 11☿︎ Mercury05:53 – 07:01
- 12☽︎ Moon07:01 – 08:09
Other cities · Argentina
Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Friday, 20 June 2025, the Sun rises at 08:08 and sets at 18:36: the day lasts 10h 27m, that is twelve day hours of 52 min. The night, until the next sunrise at 08:09, lasts 13h 33m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Venus, from 08:08 to 09:01: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.