Planetary hours
in Merlo.
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, 11 December 2026: day of Venus
- Sunrise
- 05:35
- Sunset
- 20:01
- Next sunrise
- 05:35
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus05:35 – 06:47
- 2☿︎ Mercury06:47 – 07:59
- 3☽︎ Moon07:59 – 09:11
- 4♄︎ Saturn09:11 – 10:23
- 5♃︎ Jupiter10:23 – 11:36
- 6♂︎ Mars11:36 – 12:48
- 7☉︎ Sun12:48 – 14:00
- 8♀︎ Venus14:00 – 15:12
- 9☿︎ Mercury15:12 – 16:24
- 10☽︎ Moon16:24 – 17:37
- 11♄︎ Saturn17:37 – 18:49
- 12♃︎ Jupiter18:49 – 20:01
Night
- 1♂︎ Mars20:01 – 20:49
- 2☉︎ Sun20:49 – 21:37
- 3♀︎ Venus21:37 – 22:24
- 4☿︎ Mercury22:24 – 23:12
- 5☽︎ Moon23:12 – 00:00
- 6♄︎ Saturn00:00 – 00:48
- 7♃︎ Jupiter00:48 – 01:36
- 8♂︎ Mars01:36 – 02:24
- 9☉︎ Sun02:24 – 03:11
- 10♀︎ Venus03:11 – 03:59
- 11☿︎ Mercury03:59 – 04:47
- 12☽︎ Moon04:47 – 05:35
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Friday, 11 December 2026, the Sun rises at 05:35 and sets at 20:01: the day lasts 14h 26m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:35, lasts 9h 34m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Venus, from 05:35 to 06:47: 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.