Planetary hours
in Chicago.
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, 16 December 2028: day of Saturn
- Sunrise
- 07:12
- Sunset
- 16:20
- Next sunrise
- 07:12
A day hour lasts 46 min; a night hour, 1h 14m. Local time (America/Chicago).
Day
- 1♄︎ Saturn07:12 – 07:57
- 2♃︎ Jupiter07:57 – 08:43
- 3♂︎ Mars08:43 – 09:29
- 4☉︎ Sun09:29 – 10:15
- 5♀︎ Venus10:15 – 11:00
- 6☿︎ Mercury11:00 – 11:46
- 7☽︎ Moon11:46 – 12:32
- 8♄︎ Saturn12:32 – 13:17
- 9♃︎ Jupiter13:17 – 14:03
- 10♂︎ Mars14:03 – 14:49
- 11☉︎ Sun14:49 – 15:35
- 12♀︎ Venus15:35 – 16:20
Night
- 1☿︎ Mercury16:20 – 17:35
- 2☽︎ Moon17:35 – 18:49
- 3♄︎ Saturn18:49 – 20:03
- 4♃︎ Jupiter20:03 – 21:18
- 5♂︎ Mars21:18 – 22:32
- 6☉︎ Sun22:32 – 23:46
- 7♀︎ Venus23:46 – 01:01
- 8☿︎ Mercury01:01 – 02:15
- 9☽︎ Moon02:15 – 03:29
- 10♄︎ Saturn03:29 – 04:44
- 11♃︎ Jupiter04:44 – 05:58
- 12♂︎ Mars05:58 – 07:12
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Saturday, 16 December 2028, the Sun rises at 07:12 and sets at 16:20: the day lasts 9h 09m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:12, lasts 14h 52m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Saturn, from 07:12 to 07:57: 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.