Planetary hours
in Mar del Plata.
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, 31 January 2027: day of the Sun
- Sunrise
- 06:02
- Sunset
- 20:04
- Next sunrise
- 06:03
A day hour lasts 1h 10m; a night hour, 50 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun06:02 – 07:12
- 2♀︎ Venus07:12 – 08:22
- 3☿︎ Mercury08:22 – 09:32
- 4☽︎ Moon09:32 – 10:43
- 5♄︎ Saturn10:43 – 11:53
- 6♃︎ Jupiter11:53 – 13:03
- 7♂︎ Mars13:03 – 14:13
- 8☉︎ Sun14:13 – 15:23
- 9♀︎ Venus15:23 – 16:33
- 10☿︎ Mercury16:33 – 17:44
- 11☽︎ Moon17:44 – 18:54
- 12♄︎ Saturn18:54 – 20:04
Night
- 1♃︎ Jupiter20:04 – 20:54
- 2♂︎ Mars20:54 – 21:44
- 3☉︎ Sun21:44 – 22:34
- 4♀︎ Venus22:34 – 23:24
- 5☿︎ Mercury23:24 – 00:13
- 6☽︎ Moon00:13 – 01:03
- 7♄︎ Saturn01:03 – 01:53
- 8♃︎ Jupiter01:53 – 02:43
- 9♂︎ Mars02:43 – 03:33
- 10☉︎ Sun03:33 – 04:23
- 11♀︎ Venus04:23 – 05:13
- 12☿︎ Mercury05:13 – 06:03
Other cities · Argentina
Questions
How are the planetary hours calculated in Mar del Plata?
On Sunday, 31 January 2027, the Sun rises at 06:02 and sets at 20:04: the day lasts 14h 02m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 06:03, lasts 9h 59m: twelve night hours of 50 min.
Which planet rules the first hour that day?
The Sun, from 06:02 to 07:12: 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.