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, 19 October 2026: day of the Moon
- Sunrise
- 06:07
- Sunset
- 19:12
- Next sunrise
- 06:06
A day hour lasts 1h 05m; a night hour, 54 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☽︎ Moon06:07 – 07:13
- 2♄︎ Saturn07:13 – 08:18
- 3♃︎ Jupiter08:18 – 09:23
- 4♂︎ Mars09:23 – 10:29
- 5☉︎ Sun10:29 – 11:34
- 6♀︎ Venus11:34 – 12:40
- 7☿︎ Mercury12:40 – 13:45
- 8☽︎ Moon13:45 – 14:50
- 9♄︎ Saturn14:50 – 15:56
- 10♃︎ Jupiter15:56 – 17:01
- 11♂︎ Mars17:01 – 18:07
- 12☉︎ Sun18:07 – 19:12
Night
- 1♀︎ Venus19:12 – 20:07
- 2☿︎ Mercury20:07 – 21:01
- 3☽︎ Moon21:01 – 21:56
- 4♄︎ Saturn21:56 – 22:50
- 5♃︎ Jupiter22:50 – 23:45
- 6♂︎ Mars23:45 – 00:39
- 7☉︎ Sun00:39 – 01:34
- 8♀︎ Venus01:34 – 02:28
- 9☿︎ Mercury02:28 – 03:22
- 10☽︎ Moon03:22 – 04:17
- 11♄︎ Saturn04:17 – 05:11
- 12♃︎ Jupiter05:11 – 06:06
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Monday, 19 October 2026, the Sun rises at 06:07 and sets at 19:12: the day lasts 13h 05m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:06, lasts 10h 54m: twelve night hours of 54 min.
Which planet rules the first hour that day?
The Moon, from 06:07 to 07:13: 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.