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, 4 August 2026: day of Mars
- Sunrise
- 05:47
- Sunset
- 20:05
- Next sunrise
- 05:48
A day hour lasts 1h 11m; a night hour, 49 min. Local time (America/Chicago).
Day
- 1♂︎ Mars05:47 – 06:59
- 2☉︎ Sun06:59 – 08:10
- 3♀︎ Venus08:10 – 09:21
- 4☿︎ Mercury09:21 – 10:33
- 5☽︎ Moon10:33 – 11:44
- 6♄︎ Saturn11:44 – 12:56
- 7♃︎ Jupiter12:56 – 14:07
- 8♂︎ Mars14:07 – 15:19
- 9☉︎ Sun15:19 – 16:30
- 10♀︎ Venus16:30 – 17:42
- 11☿︎ Mercury17:42 – 18:53
- 12☽︎ Moon18:53 – 20:05
Night
- 1♄︎ Saturn20:05 – 20:53
- 2♃︎ Jupiter20:53 – 21:42
- 3♂︎ Mars21:42 – 22:31
- 4☉︎ Sun22:31 – 23:19
- 5♀︎ Venus23:19 – 00:08
- 6☿︎ Mercury00:08 – 00:56
- 7☽︎ Moon00:56 – 01:45
- 8♄︎ Saturn01:45 – 02:34
- 9♃︎ Jupiter02:34 – 03:22
- 10♂︎ Mars03:22 – 04:11
- 11☉︎ Sun04:11 – 04:59
- 12♀︎ Venus04:59 – 05:48
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Tuesday, 4 August 2026, the Sun rises at 05:47 and sets at 20:05: the day lasts 14h 18m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:48, lasts 9h 43m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mars, from 05:47 to 06:59: 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.