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, 3 January 2026: day of Saturn
- Sunrise
- 07:18
- Sunset
- 16:32
- Next sunrise
- 07:18
A day hour lasts 46 min; a night hour, 1h 14m. Local time (America/Chicago).
Day
- 1♄︎ Saturn07:18 – 08:04
- 2♃︎ Jupiter08:04 – 08:50
- 3♂︎ Mars08:50 – 09:36
- 4☉︎ Sun09:36 – 10:22
- 5♀︎ Venus10:22 – 11:09
- 6☿︎ Mercury11:09 – 11:55
- 7☽︎ Moon11:55 – 12:41
- 8♄︎ Saturn12:41 – 13:27
- 9♃︎ Jupiter13:27 – 14:13
- 10♂︎ Mars14:13 – 14:59
- 11☉︎ Sun14:59 – 15:46
- 12♀︎ Venus15:46 – 16:32
Night
- 1☿︎ Mercury16:32 – 17:46
- 2☽︎ Moon17:46 – 18:59
- 3♄︎ Saturn18:59 – 20:13
- 4♃︎ Jupiter20:13 – 21:27
- 5♂︎ Mars21:27 – 22:41
- 6☉︎ Sun22:41 – 23:55
- 7♀︎ Venus23:55 – 01:09
- 8☿︎ Mercury01:09 – 02:22
- 9☽︎ Moon02:22 – 03:36
- 10♄︎ Saturn03:36 – 04:50
- 11♃︎ Jupiter04:50 – 06:04
- 12♂︎ Mars06:04 – 07:18
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Saturday, 3 January 2026, the Sun rises at 07:18 and sets at 16:32: the day lasts 9h 14m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:18, lasts 14h 46m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Saturn, from 07:18 to 08:04: 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.