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 Monday, 31 August 2026: day of the Moon
- Sunrise
- 06:15
- Sunset
- 19:25
- Next sunrise
- 06:16
A day hour lasts 1h 06m; a night hour, 54 min. Local time (America/Chicago).
Day
- 1☽︎ Moon06:15 – 07:21
- 2♄︎ Saturn07:21 – 08:27
- 3♃︎ Jupiter08:27 – 09:32
- 4♂︎ Mars09:32 – 10:38
- 5☉︎ Sun10:38 – 11:44
- 6♀︎ Venus11:44 – 12:50
- 7☿︎ Mercury12:50 – 13:56
- 8☽︎ Moon13:56 – 15:02
- 9♄︎ Saturn15:02 – 16:07
- 10♃︎ Jupiter16:07 – 17:13
- 11♂︎ Mars17:13 – 18:19
- 12☉︎ Sun18:19 – 19:25
Night
- 1♀︎ Venus19:25 – 20:19
- 2☿︎ Mercury20:19 – 21:13
- 3☽︎ Moon21:13 – 22:08
- 4♄︎ Saturn22:08 – 23:02
- 5♃︎ Jupiter23:02 – 23:56
- 6♂︎ Mars23:56 – 00:50
- 7☉︎ Sun00:50 – 01:45
- 8♀︎ Venus01:45 – 02:39
- 9☿︎ Mercury02:39 – 03:33
- 10☽︎ Moon03:33 – 04:27
- 11♄︎ Saturn04:27 – 05:22
- 12♃︎ Jupiter05:22 – 06:16
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Monday, 31 August 2026, the Sun rises at 06:15 and sets at 19:25: the day lasts 13h 10m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 06:16, lasts 10h 51m: twelve night hours of 54 min.
Which planet rules the first hour that day?
The Moon, from 06:15 to 07:21: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.