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 Tuesday, 16 December 2025: day of Mars
- Sunrise
- 05:08
- Sunset
- 18:15
- Next sunrise
- 05:09
A day hour lasts 1h 06m; a night hour, 55 min. Local time (America/Lima).
Day
- 1♂︎ Mars05:08 – 06:14
- 2☉︎ Sun06:14 – 07:19
- 3♀︎ Venus07:19 – 08:25
- 4☿︎ Mercury08:25 – 09:30
- 5☽︎ Moon09:30 – 10:36
- 6♄︎ Saturn10:36 – 11:41
- 7♃︎ Jupiter11:41 – 12:47
- 8♂︎ Mars12:47 – 13:53
- 9☉︎ Sun13:53 – 14:58
- 10♀︎ Venus14:58 – 16:04
- 11☿︎ Mercury16:04 – 17:09
- 12☽︎ Moon17:09 – 18:15
Night
- 1♄︎ Saturn18:15 – 19:09
- 2♃︎ Jupiter19:09 – 20:04
- 3♂︎ Mars20:04 – 20:58
- 4☉︎ Sun20:58 – 21:53
- 5♀︎ Venus21:53 – 22:47
- 6☿︎ Mercury22:47 – 23:42
- 7☽︎ Moon23:42 – 00:36
- 8♄︎ Saturn00:36 – 01:31
- 9♃︎ Jupiter01:31 – 02:25
- 10♂︎ Mars02:25 – 03:20
- 11☉︎ Sun03:20 – 04:14
- 12♀︎ Venus04:14 – 05:09
Questions
How are the planetary hours calculated in Arequipa?
On Tuesday, 16 December 2025, the Sun rises at 05:08 and sets at 18:15: the day lasts 13h 06m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:09, lasts 10h 54m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mars, from 05:08 to 06:14: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.