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 Monday, 12 October 2026: day of the Moon
- Sunrise
- 06:16
- Sunset
- 19:06
- Next sunrise
- 06:15
A day hour lasts 1h 04m; a night hour, 56 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☽︎ Moon06:16 – 07:20
- 2♄︎ Saturn07:20 – 08:24
- 3♃︎ Jupiter08:24 – 09:29
- 4♂︎ Mars09:29 – 10:33
- 5☉︎ Sun10:33 – 11:37
- 6♀︎ Venus11:37 – 12:41
- 7☿︎ Mercury12:41 – 13:45
- 8☽︎ Moon13:45 – 14:50
- 9♄︎ Saturn14:50 – 15:54
- 10♃︎ Jupiter15:54 – 16:58
- 11♂︎ Mars16:58 – 18:02
- 12☉︎ Sun18:02 – 19:06
Night
- 1♀︎ Venus19:06 – 20:02
- 2☿︎ Mercury20:02 – 20:58
- 3☽︎ Moon20:58 – 21:53
- 4♄︎ Saturn21:53 – 22:49
- 5♃︎ Jupiter22:49 – 23:45
- 6♂︎ Mars23:45 – 00:40
- 7☉︎ Sun00:40 – 01:36
- 8♀︎ Venus01:36 – 02:32
- 9☿︎ Mercury02:32 – 03:28
- 10☽︎ Moon03:28 – 04:23
- 11♄︎ Saturn04:23 – 05:19
- 12♃︎ Jupiter05:19 – 06:15
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Monday, 12 October 2026, the Sun rises at 06:16 and sets at 19:06: the day lasts 12h 50m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:15, lasts 11h 08m: twelve night hours of 56 min.
Which planet rules the first hour that day?
The Moon, from 06:16 to 07:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.