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 Tuesday, 22 December 2026: day of Mars
- Sunrise
- 07:15
- Sunset
- 16:23
- Next sunrise
- 07:15
A day hour lasts 46 min; a night hour, 1h 14m. Local time (America/Chicago).
Day
- 1♂︎ Mars07:15 – 08:00
- 2☉︎ Sun08:00 – 08:46
- 3♀︎ Venus08:46 – 09:32
- 4☿︎ Mercury09:32 – 10:17
- 5☽︎ Moon10:17 – 11:03
- 6♄︎ Saturn11:03 – 11:49
- 7♃︎ Jupiter11:49 – 12:34
- 8♂︎ Mars12:34 – 13:20
- 9☉︎ Sun13:20 – 14:06
- 10♀︎ Venus14:06 – 14:51
- 11☿︎ Mercury14:51 – 15:37
- 12☽︎ Moon15:37 – 16:23
Night
- 1♄︎ Saturn16:23 – 17:37
- 2♃︎ Jupiter17:37 – 18:52
- 3♂︎ Mars18:52 – 20:06
- 4☉︎ Sun20:06 – 21:20
- 5♀︎ Venus21:20 – 22:35
- 6☿︎ Mercury22:35 – 23:49
- 7☽︎ Moon23:49 – 01:03
- 8♄︎ Saturn01:03 – 02:18
- 9♃︎ Jupiter02:18 – 03:32
- 10♂︎ Mars03:32 – 04:47
- 11☉︎ Sun04:47 – 06:01
- 12♀︎ Venus06:01 – 07:15
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Tuesday, 22 December 2026, the Sun rises at 07:15 and sets at 16:23: the day lasts 9h 08m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:15, lasts 14h 52m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mars, from 07:15 to 08:00: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.