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, 31 October 2026: day of Saturn
- Sunrise
- 07:21
- Sunset
- 17:45
- Next sunrise
- 06:23
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Chicago).
Day
- 1♄︎ Saturn07:21 – 08:13
- 2♃︎ Jupiter08:13 – 09:05
- 3♂︎ Mars09:05 – 09:57
- 4☉︎ Sun09:57 – 10:49
- 5♀︎ Venus10:49 – 11:41
- 6☿︎ Mercury11:41 – 12:33
- 7☽︎ Moon12:33 – 13:25
- 8♄︎ Saturn13:25 – 14:17
- 9♃︎ Jupiter14:17 – 15:09
- 10♂︎ Mars15:09 – 16:01
- 11☉︎ Sun16:01 – 16:53
- 12♀︎ Venus16:53 – 17:45
Night
- 1☿︎ Mercury17:45 – 18:54
- 2☽︎ Moon18:54 – 20:02
- 3♄︎ Saturn20:02 – 21:10
- 4♃︎ Jupiter21:10 – 22:18
- 5♂︎ Mars22:18 – 23:26
- 6☉︎ Sun23:26 – 00:34
- 7♀︎ Venus00:34 – 01:42
- 8☿︎ Mercury01:42 – 01:50
- 9☽︎ Moon01:50 – 02:58
- 10♄︎ Saturn02:58 – 04:06
- 11♃︎ Jupiter04:06 – 05:15
- 12♂︎ Mars05:15 – 06:23
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Saturday, 31 October 2026, the Sun rises at 07:21 and sets at 17:45: the day lasts 10h 24m, that is twelve day hours of 52 min. The night, until the next sunrise at 06:23, lasts 13h 37m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Saturn, from 07:21 to 08:13: 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.