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, 5 September 2026: day of Saturn
- Sunrise
- 06:20
- Sunset
- 19:17
- Next sunrise
- 06:21
A day hour lasts 1h 05m; a night hour, 55 min. Local time (America/Chicago).
Day
- 1♄︎ Saturn06:20 – 07:25
- 2♃︎ Jupiter07:25 – 08:29
- 3♂︎ Mars08:29 – 09:34
- 4☉︎ Sun09:34 – 10:39
- 5♀︎ Venus10:39 – 11:44
- 6☿︎ Mercury11:44 – 12:48
- 7☽︎ Moon12:48 – 13:53
- 8♄︎ Saturn13:53 – 14:58
- 9♃︎ Jupiter14:58 – 16:02
- 10♂︎ Mars16:02 – 17:07
- 11☉︎ Sun17:07 – 18:12
- 12♀︎ Venus18:12 – 19:17
Night
- 1☿︎ Mercury19:17 – 20:12
- 2☽︎ Moon20:12 – 21:07
- 3♄︎ Saturn21:07 – 22:03
- 4♃︎ Jupiter22:03 – 22:58
- 5♂︎ Mars22:58 – 23:53
- 6☉︎ Sun23:53 – 00:49
- 7♀︎ Venus00:49 – 01:44
- 8☿︎ Mercury01:44 – 02:40
- 9☽︎ Moon02:40 – 03:35
- 10♄︎ Saturn03:35 – 04:30
- 11♃︎ Jupiter04:30 – 05:26
- 12♂︎ Mars05:26 – 06:21
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Saturday, 5 September 2026, the Sun rises at 06:20 and sets at 19:17: the day lasts 12h 57m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:21, lasts 11h 04m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Saturn, from 06:20 to 07:25: 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.