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 Thursday, 8 January 2026: day of Jupiter
- Sunrise
- 07:17
- Sunset
- 16:37
- Next sunrise
- 07:17
A day hour lasts 47 min; a night hour, 1h 13m. Local time (America/Chicago).
Day
- 1♃︎ Jupiter07:17 – 08:04
- 2♂︎ Mars08:04 – 08:51
- 3☉︎ Sun08:51 – 09:37
- 4♀︎ Venus09:37 – 10:24
- 5☿︎ Mercury10:24 – 11:10
- 6☽︎ Moon11:10 – 11:57
- 7♄︎ Saturn11:57 – 12:44
- 8♃︎ Jupiter12:44 – 13:30
- 9♂︎ Mars13:30 – 14:17
- 10☉︎ Sun14:17 – 15:03
- 11♀︎ Venus15:03 – 15:50
- 12☿︎ Mercury15:50 – 16:37
Night
- 1☽︎ Moon16:37 – 17:50
- 2♄︎ Saturn17:50 – 19:03
- 3♃︎ Jupiter19:03 – 20:17
- 4♂︎ Mars20:17 – 21:30
- 5☉︎ Sun21:30 – 22:44
- 6♀︎ Venus22:44 – 23:57
- 7☿︎ Mercury23:57 – 01:10
- 8☽︎ Moon01:10 – 02:24
- 9♄︎ Saturn02:24 – 03:37
- 10♃︎ Jupiter03:37 – 04:50
- 11♂︎ Mars04:50 – 06:04
- 12☉︎ Sun06:04 – 07:17
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Thursday, 8 January 2026, the Sun rises at 07:17 and sets at 16:37: the day lasts 9h 19m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:17, lasts 14h 40m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Jupiter, from 07:17 to 08:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.