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, 15 August 2026: day of Saturn
- Sunrise
- 05:58
- Sunset
- 19:50
- Next sunrise
- 05:59
A day hour lasts 1h 09m; a night hour, 51 min. Local time (America/Chicago).
Day
- 1♄︎ Saturn05:58 – 07:08
- 2♃︎ Jupiter07:08 – 08:17
- 3♂︎ Mars08:17 – 09:26
- 4☉︎ Sun09:26 – 10:36
- 5♀︎ Venus10:36 – 11:45
- 6☿︎ Mercury11:45 – 12:54
- 7☽︎ Moon12:54 – 14:03
- 8♄︎ Saturn14:03 – 15:13
- 9♃︎ Jupiter15:13 – 16:22
- 10♂︎ Mars16:22 – 17:31
- 11☉︎ Sun17:31 – 18:41
- 12♀︎ Venus18:41 – 19:50
Night
- 1☿︎ Mercury19:50 – 20:41
- 2☽︎ Moon20:41 – 21:32
- 3♄︎ Saturn21:32 – 22:22
- 4♃︎ Jupiter22:22 – 23:13
- 5♂︎ Mars23:13 – 00:04
- 6☉︎ Sun00:04 – 00:55
- 7♀︎ Venus00:55 – 01:45
- 8☿︎ Mercury01:45 – 02:36
- 9☽︎ Moon02:36 – 03:27
- 10♄︎ Saturn03:27 – 04:18
- 11♃︎ Jupiter04:18 – 05:09
- 12♂︎ Mars05:09 – 05:59
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Saturday, 15 August 2026, the Sun rises at 05:58 and sets at 19:50: the day lasts 13h 52m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 05:59, lasts 10h 09m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Saturn, from 05:58 to 07:08: 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.