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, 25 October 2026: day of the Sun
- Sunrise
- 06:00
- Sunset
- 19:17
- Next sunrise
- 05:59
A day hour lasts 1h 06m; a night hour, 53 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun06:00 – 07:06
- 2♀︎ Venus07:06 – 08:13
- 3☿︎ Mercury08:13 – 09:19
- 4☽︎ Moon09:19 – 10:26
- 5♄︎ Saturn10:26 – 11:32
- 6♃︎ Jupiter11:32 – 12:39
- 7♂︎ Mars12:39 – 13:45
- 8☉︎ Sun13:45 – 14:52
- 9♀︎ Venus14:52 – 15:58
- 10☿︎ Mercury15:58 – 17:05
- 11☽︎ Moon17:05 – 18:11
- 12♄︎ Saturn18:11 – 19:17
Night
- 1♃︎ Jupiter19:17 – 20:11
- 2♂︎ Mars20:11 – 21:04
- 3☉︎ Sun21:04 – 21:58
- 4♀︎ Venus21:58 – 22:51
- 5☿︎ Mercury22:51 – 23:45
- 6☽︎ Moon23:45 – 00:38
- 7♄︎ Saturn00:38 – 01:32
- 8♃︎ Jupiter01:32 – 02:25
- 9♂︎ Mars02:25 – 03:19
- 10☉︎ Sun03:19 – 04:12
- 11♀︎ Venus04:12 – 05:05
- 12☿︎ Mercury05:05 – 05:59
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Sunday, 25 October 2026, the Sun rises at 06:00 and sets at 19:17: the day lasts 13h 17m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:59, lasts 10h 41m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Sun, from 06:00 to 07:06: 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.