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, 20 October 2026: day of Mars
- Sunrise
- 07:08
- Sunset
- 18:01
- Next sunrise
- 07:09
A day hour lasts 54 min; a night hour, 1h 06m. Local time (America/Chicago).
Day
- 1♂︎ Mars07:08 – 08:03
- 2☉︎ Sun08:03 – 08:57
- 3♀︎ Venus08:57 – 09:51
- 4☿︎ Mercury09:51 – 10:46
- 5☽︎ Moon10:46 – 11:40
- 6♄︎ Saturn11:40 – 12:35
- 7♃︎ Jupiter12:35 – 13:29
- 8♂︎ Mars13:29 – 14:23
- 9☉︎ Sun14:23 – 15:18
- 10♀︎ Venus15:18 – 16:12
- 11☿︎ Mercury16:12 – 17:06
- 12☽︎ Moon17:06 – 18:01
Night
- 1♄︎ Saturn18:01 – 19:07
- 2♃︎ Jupiter19:07 – 20:12
- 3♂︎ Mars20:12 – 21:18
- 4☉︎ Sun21:18 – 22:24
- 5♀︎ Venus22:24 – 23:29
- 6☿︎ Mercury23:29 – 00:35
- 7☽︎ Moon00:35 – 01:41
- 8♄︎ Saturn01:41 – 02:47
- 9♃︎ Jupiter02:47 – 03:52
- 10♂︎ Mars03:52 – 04:58
- 11☉︎ Sun04:58 – 06:04
- 12♀︎ Venus06:04 – 07:09
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Tuesday, 20 October 2026, the Sun rises at 07:08 and sets at 18:01: the day lasts 10h 53m, that is twelve day hours of 54 min. The night, until the next sunrise at 07:09, lasts 13h 09m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Mars, from 07:08 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 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.