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, 16 October 2026: day of Venus
- Sunrise
- 06:44
- Sunset
- 19:28
- Next sunrise
- 06:43
A day hour lasts 1h 04m; a night hour, 56 min. Local time (America/Argentina/Tucuman).
Day
- 1♀︎ Venus06:44 – 07:48
- 2☿︎ Mercury07:48 – 08:51
- 3☽︎ Moon08:51 – 09:55
- 4♄︎ Saturn09:55 – 10:59
- 5♃︎ Jupiter10:59 – 12:02
- 6♂︎ Mars12:02 – 13:06
- 7☉︎ Sun13:06 – 14:10
- 8♀︎ Venus14:10 – 15:13
- 9☿︎ Mercury15:13 – 16:17
- 10☽︎ Moon16:17 – 17:21
- 11♄︎ Saturn17:21 – 18:25
- 12♃︎ Jupiter18:25 – 19:28
Night
- 1♂︎ Mars19:28 – 20:24
- 2☉︎ Sun20:24 – 21:21
- 3♀︎ Venus21:21 – 22:17
- 4☿︎ Mercury22:17 – 23:13
- 5☽︎ Moon23:13 – 00:09
- 6♄︎ Saturn00:09 – 01:06
- 7♃︎ Jupiter01:06 – 02:02
- 8♂︎ Mars02:02 – 02:58
- 9☉︎ Sun02:58 – 03:54
- 10♀︎ Venus03:54 – 04:50
- 11☿︎ Mercury04:50 – 05:47
- 12☽︎ Moon05:47 – 06:43
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Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Friday, 16 October 2026, the Sun rises at 06:44 and sets at 19:28: the day lasts 12h 44m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:43, lasts 11h 15m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Venus, from 06:44 to 07:48: 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.