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 Friday, 4 September 2026: day of Venus
- Sunrise
- 06:19
- Sunset
- 19:18
- Next sunrise
- 06:20
A day hour lasts 1h 05m; a night hour, 55 min. Local time (America/Chicago).
Day
- 1♀︎ Venus06:19 – 07:24
- 2☿︎ Mercury07:24 – 08:29
- 3☽︎ Moon08:29 – 09:34
- 4♄︎ Saturn09:34 – 10:39
- 5♃︎ Jupiter10:39 – 11:44
- 6♂︎ Mars11:44 – 12:49
- 7☉︎ Sun12:49 – 13:54
- 8♀︎ Venus13:54 – 14:59
- 9☿︎ Mercury14:59 – 16:03
- 10☽︎ Moon16:03 – 17:08
- 11♄︎ Saturn17:08 – 18:13
- 12♃︎ Jupiter18:13 – 19:18
Night
- 1♂︎ Mars19:18 – 20:13
- 2☉︎ Sun20:13 – 21:09
- 3♀︎ Venus21:09 – 22:04
- 4☿︎ Mercury22:04 – 22:59
- 5☽︎ Moon22:59 – 23:54
- 6♄︎ Saturn23:54 – 00:49
- 7♃︎ Jupiter00:49 – 01:44
- 8♂︎ Mars01:44 – 02:39
- 9☉︎ Sun02:39 – 03:35
- 10♀︎ Venus03:35 – 04:30
- 11☿︎ Mercury04:30 – 05:25
- 12☽︎ Moon05:25 – 06:20
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Friday, 4 September 2026, the Sun rises at 06:19 and sets at 19:18: the day lasts 12h 59m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:20, lasts 11h 02m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Venus, from 06:19 to 07:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.