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 Friday, 4 December 2026: day of Venus
- Sunrise
- 07:01
- Sunset
- 16:19
- Next sunrise
- 07:02
A day hour lasts 47 min; a night hour, 1h 14m. Local time (America/Chicago).
Day
- 1♀︎ Venus07:01 – 07:48
- 2☿︎ Mercury07:48 – 08:34
- 3☽︎ Moon08:34 – 09:21
- 4♄︎ Saturn09:21 – 10:07
- 5♃︎ Jupiter10:07 – 10:54
- 6♂︎ Mars10:54 – 11:40
- 7☉︎ Sun11:40 – 12:27
- 8♀︎ Venus12:27 – 13:13
- 9☿︎ Mercury13:13 – 14:00
- 10☽︎ Moon14:00 – 14:46
- 11♄︎ Saturn14:46 – 15:33
- 12♃︎ Jupiter15:33 – 16:19
Night
- 1♂︎ Mars16:19 – 17:33
- 2☉︎ Sun17:33 – 18:46
- 3♀︎ Venus18:46 – 20:00
- 4☿︎ Mercury20:00 – 21:14
- 5☽︎ Moon21:14 – 22:27
- 6♄︎ Saturn22:27 – 23:41
- 7♃︎ Jupiter23:41 – 00:54
- 8♂︎ Mars00:54 – 02:08
- 9☉︎ Sun02:08 – 03:21
- 10♀︎ Venus03:21 – 04:35
- 11☿︎ Mercury04:35 – 05:49
- 12☽︎ Moon05:49 – 07:02
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Friday, 4 December 2026, the Sun rises at 07:01 and sets at 16:19: the day lasts 9h 18m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:02, lasts 14h 43m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Venus, from 07:01 to 07:48: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.