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 Sunday, 24 May 2026: day of the Sun
- Sunrise
- 07:48
- Sunset
- 17:55
- Next sunrise
- 07:48
A day hour lasts 51 min; a night hour, 1h 09m. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun07:48 – 08:38
- 2♀︎ Venus08:38 – 09:29
- 3☿︎ Mercury09:29 – 10:19
- 4☽︎ Moon10:19 – 11:10
- 5♄︎ Saturn11:10 – 12:01
- 6♃︎ Jupiter12:01 – 12:51
- 7♂︎ Mars12:51 – 13:42
- 8☉︎ Sun13:42 – 14:32
- 9♀︎ Venus14:32 – 15:23
- 10☿︎ Mercury15:23 – 16:13
- 11☽︎ Moon16:13 – 17:04
- 12♄︎ Saturn17:04 – 17:55
Night
- 1♃︎ Jupiter17:55 – 19:04
- 2♂︎ Mars19:04 – 20:14
- 3☉︎ Sun20:14 – 21:23
- 4♀︎ Venus21:23 – 22:33
- 5☿︎ Mercury22:33 – 23:42
- 6☽︎ Moon23:42 – 00:52
- 7♄︎ Saturn00:52 – 02:01
- 8♃︎ Jupiter02:01 – 03:10
- 9♂︎ Mars03:10 – 04:20
- 10☉︎ Sun04:20 – 05:29
- 11♀︎ Venus05:29 – 06:39
- 12☿︎ Mercury06:39 – 07:48
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Sunday, 24 May 2026, the Sun rises at 07:48 and sets at 17:55: the day lasts 10h 07m, that is twelve day hours of 51 min. The night, until the next sunrise at 07:48, lasts 13h 54m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
The Sun, from 07:48 to 08:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.