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, 8 August 2026: day of Saturn
- Sunrise
- 05:51
- Sunset
- 20:00
- Next sunrise
- 05:52
A day hour lasts 1h 11m; a night hour, 49 min. Local time (America/Chicago).
Day
- 1♄︎ Saturn05:51 – 07:02
- 2♃︎ Jupiter07:02 – 08:13
- 3♂︎ Mars08:13 – 09:23
- 4☉︎ Sun09:23 – 10:34
- 5♀︎ Venus10:34 – 11:45
- 6☿︎ Mercury11:45 – 12:55
- 7☽︎ Moon12:55 – 14:06
- 8♄︎ Saturn14:06 – 15:17
- 9♃︎ Jupiter15:17 – 16:28
- 10♂︎ Mars16:28 – 17:38
- 11☉︎ Sun17:38 – 18:49
- 12♀︎ Venus18:49 – 20:00
Night
- 1☿︎ Mercury20:00 – 20:49
- 2☽︎ Moon20:49 – 21:38
- 3♄︎ Saturn21:38 – 22:28
- 4♃︎ Jupiter22:28 – 23:17
- 5♂︎ Mars23:17 – 00:07
- 6☉︎ Sun00:07 – 00:56
- 7♀︎ Venus00:56 – 01:45
- 8☿︎ Mercury01:45 – 02:35
- 9☽︎ Moon02:35 – 03:24
- 10♄︎ Saturn03:24 – 04:13
- 11♃︎ Jupiter04:13 – 05:03
- 12♂︎ Mars05:03 – 05:52
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Saturday, 8 August 2026, the Sun rises at 05:51 and sets at 20:00: the day lasts 14h 08m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:52, lasts 9h 53m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Saturn, from 05:51 to 07:02: 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.