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, 28 July 2026: day of Mars
- Sunrise
- 05:40
- Sunset
- 20:13
- Next sunrise
- 05:41
A day hour lasts 1h 13m; a night hour, 47 min. Local time (America/Chicago).
Day
- 1♂︎ Mars05:40 – 06:53
- 2☉︎ Sun06:53 – 08:06
- 3♀︎ Venus08:06 – 09:18
- 4☿︎ Mercury09:18 – 10:31
- 5☽︎ Moon10:31 – 11:44
- 6♄︎ Saturn11:44 – 12:56
- 7♃︎ Jupiter12:56 – 14:09
- 8♂︎ Mars14:09 – 15:22
- 9☉︎ Sun15:22 – 16:34
- 10♀︎ Venus16:34 – 17:47
- 11☿︎ Mercury17:47 – 19:00
- 12☽︎ Moon19:00 – 20:13
Night
- 1♄︎ Saturn20:13 – 21:00
- 2♃︎ Jupiter21:00 – 21:47
- 3♂︎ Mars21:47 – 22:35
- 4☉︎ Sun22:35 – 23:22
- 5♀︎ Venus23:22 – 00:09
- 6☿︎ Mercury00:09 – 00:57
- 7☽︎ Moon00:57 – 01:44
- 8♄︎ Saturn01:44 – 02:32
- 9♃︎ Jupiter02:32 – 03:19
- 10♂︎ Mars03:19 – 04:06
- 11☉︎ Sun04:06 – 04:54
- 12♀︎ Venus04:54 – 05:41
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Tuesday, 28 July 2026, the Sun rises at 05:40 and sets at 20:13: the day lasts 14h 32m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 05:41, lasts 9h 29m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Mars, from 05:40 to 06:53: 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.