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, 27 December 2026: day of the Sun
- Sunrise
- 05:41
- Sunset
- 20:10
- Next sunrise
- 05:42
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun05:41 – 06:54
- 2♀︎ Venus06:54 – 08:06
- 3☿︎ Mercury08:06 – 09:18
- 4☽︎ Moon09:18 – 10:31
- 5♄︎ Saturn10:31 – 11:43
- 6♃︎ Jupiter11:43 – 12:55
- 7♂︎ Mars12:55 – 14:08
- 8☉︎ Sun14:08 – 15:20
- 9♀︎ Venus15:20 – 16:33
- 10☿︎ Mercury16:33 – 17:45
- 11☽︎ Moon17:45 – 18:57
- 12♄︎ Saturn18:57 – 20:10
Night
- 1♃︎ Jupiter20:10 – 20:57
- 2♂︎ Mars20:57 – 21:45
- 3☉︎ Sun21:45 – 22:33
- 4♀︎ Venus22:33 – 23:20
- 5☿︎ Mercury23:20 – 00:08
- 6☽︎ Moon00:08 – 00:56
- 7♄︎ Saturn00:56 – 01:44
- 8♃︎ Jupiter01:44 – 02:31
- 9♂︎ Mars02:31 – 03:19
- 10☉︎ Sun03:19 – 04:07
- 11♀︎ Venus04:07 – 04:54
- 12☿︎ Mercury04:54 – 05:42
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Sunday, 27 December 2026, the Sun rises at 05:41 and sets at 20:10: the day lasts 14h 28m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:42, lasts 9h 32m: twelve night hours of 48 min.
Which planet rules the first hour that day?
The Sun, from 05:41 to 06:54: 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.