Planetary hours
in Arequipa.
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 Saturday, 20 December 2025: day of Saturn
- Sunrise
- 05:10
- Sunset
- 18:17
- Next sunrise
- 05:11
A day hour lasts 1h 06m; a night hour, 54 min. Local time (America/Lima).
Day
- 1♄︎ Saturn05:10 – 06:16
- 2♃︎ Jupiter06:16 – 07:21
- 3♂︎ Mars07:21 – 08:27
- 4☉︎ Sun08:27 – 09:32
- 5♀︎ Venus09:32 – 10:38
- 6☿︎ Mercury10:38 – 11:43
- 7☽︎ Moon11:43 – 12:49
- 8♄︎ Saturn12:49 – 13:55
- 9♃︎ Jupiter13:55 – 15:00
- 10♂︎ Mars15:00 – 16:06
- 11☉︎ Sun16:06 – 17:11
- 12♀︎ Venus17:11 – 18:17
Night
- 1☿︎ Mercury18:17 – 19:11
- 2☽︎ Moon19:11 – 20:06
- 3♄︎ Saturn20:06 – 21:00
- 4♃︎ Jupiter21:00 – 21:55
- 5♂︎ Mars21:55 – 22:49
- 6☉︎ Sun22:49 – 23:44
- 7♀︎ Venus23:44 – 00:38
- 8☿︎ Mercury00:38 – 01:33
- 9☽︎ Moon01:33 – 02:27
- 10♄︎ Saturn02:27 – 03:22
- 11♃︎ Jupiter03:22 – 04:16
- 12♂︎ Mars04:16 – 05:11
Questions
How are the planetary hours calculated in Arequipa?
On Saturday, 20 December 2025, the Sun rises at 05:10 and sets at 18:17: the day lasts 13h 07m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:11, lasts 10h 54m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Saturn, from 05:10 to 06:16: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.