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, 2 January 2026: day of Venus
- Sunrise
- 05:46
- Sunset
- 20:11
- Next sunrise
- 05:47
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus05:46 – 06:58
- 2☿︎ Mercury06:58 – 08:10
- 3☽︎ Moon08:10 – 09:22
- 4♄︎ Saturn09:22 – 10:34
- 5♃︎ Jupiter10:34 – 11:46
- 6♂︎ Mars11:46 – 12:58
- 7☉︎ Sun12:58 – 14:11
- 8♀︎ Venus14:11 – 15:23
- 9☿︎ Mercury15:23 – 16:35
- 10☽︎ Moon16:35 – 17:47
- 11♄︎ Saturn17:47 – 18:59
- 12♃︎ Jupiter18:59 – 20:11
Night
- 1♂︎ Mars20:11 – 20:59
- 2☉︎ Sun20:59 – 21:47
- 3♀︎ Venus21:47 – 22:35
- 4☿︎ Mercury22:35 – 23:23
- 5☽︎ Moon23:23 – 00:11
- 6♄︎ Saturn00:11 – 00:59
- 7♃︎ Jupiter00:59 – 01:47
- 8♂︎ Mars01:47 – 02:35
- 9☉︎ Sun02:35 – 03:23
- 10♀︎ Venus03:23 – 04:11
- 11☿︎ Mercury04:11 – 04:59
- 12☽︎ Moon04:59 – 05:47
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Friday, 2 January 2026, the Sun rises at 05:46 and sets at 20:11: the day lasts 14h 25m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:47, lasts 9h 36m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Venus, from 05:46 to 06:58: 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.