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 Wednesday, 30 December 2026: day of Mercury
- Sunrise
- 07:17
- Sunset
- 16:28
- Next sunrise
- 07:18
A day hour lasts 46 min; a night hour, 1h 14m. Local time (America/Chicago).
Day
- 1☿︎ Mercury07:17 – 08:03
- 2☽︎ Moon08:03 – 08:49
- 3♄︎ Saturn08:49 – 09:35
- 4♃︎ Jupiter09:35 – 10:21
- 5♂︎ Mars10:21 – 11:07
- 6☉︎ Sun11:07 – 11:53
- 7♀︎ Venus11:53 – 12:39
- 8☿︎ Mercury12:39 – 13:25
- 9☽︎ Moon13:25 – 14:10
- 10♄︎ Saturn14:10 – 14:56
- 11♃︎ Jupiter14:56 – 15:42
- 12♂︎ Mars15:42 – 16:28
Night
- 1☉︎ Sun16:28 – 17:42
- 2♀︎ Venus17:42 – 18:56
- 3☿︎ Mercury18:56 – 20:10
- 4☽︎ Moon20:10 – 21:25
- 5♄︎ Saturn21:25 – 22:39
- 6♃︎ Jupiter22:39 – 23:53
- 7♂︎ Mars23:53 – 01:07
- 8☉︎ Sun01:07 – 02:21
- 9♀︎ Venus02:21 – 03:35
- 10☿︎ Mercury03:35 – 04:49
- 11☽︎ Moon04:49 – 06:03
- 12♄︎ Saturn06:03 – 07:18
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Wednesday, 30 December 2026, the Sun rises at 07:17 and sets at 16:28: the day lasts 9h 11m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:18, lasts 14h 49m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mercury, from 07:17 to 08:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.