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, 12 September 2026: day of Saturn
- Sunrise
- 06:27
- Sunset
- 19:05
- Next sunrise
- 06:28
A day hour lasts 1h 03m; a night hour, 57 min. Local time (America/Chicago).
Day
- 1♄︎ Saturn06:27 – 07:30
- 2♃︎ Jupiter07:30 – 08:33
- 3♂︎ Mars08:33 – 09:37
- 4☉︎ Sun09:37 – 10:40
- 5♀︎ Venus10:40 – 11:43
- 6☿︎ Mercury11:43 – 12:46
- 7☽︎ Moon12:46 – 13:49
- 8♄︎ Saturn13:49 – 14:52
- 9♃︎ Jupiter14:52 – 15:55
- 10♂︎ Mars15:55 – 16:58
- 11☉︎ Sun16:58 – 18:01
- 12♀︎ Venus18:01 – 19:05
Night
- 1☿︎ Mercury19:05 – 20:02
- 2☽︎ Moon20:02 – 20:59
- 3♄︎ Saturn20:59 – 21:56
- 4♃︎ Jupiter21:56 – 22:52
- 5♂︎ Mars22:52 – 23:49
- 6☉︎ Sun23:49 – 00:46
- 7♀︎ Venus00:46 – 01:43
- 8☿︎ Mercury01:43 – 02:40
- 9☽︎ Moon02:40 – 03:37
- 10♄︎ Saturn03:37 – 04:34
- 11♃︎ Jupiter04:34 – 05:31
- 12♂︎ Mars05:31 – 06:28
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Saturday, 12 September 2026, the Sun rises at 06:27 and sets at 19:05: the day lasts 12h 37m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 06:28, lasts 11h 24m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Saturn, from 06:27 to 07:30: 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.