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 Thursday, 20 August 2026: day of Jupiter
- Sunrise
- 06:04
- Sunset
- 19:43
- Next sunrise
- 06:05
A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Chicago).
Day
- 1♃︎ Jupiter06:04 – 07:12
- 2♂︎ Mars07:12 – 08:20
- 3☉︎ Sun08:20 – 09:28
- 4♀︎ Venus09:28 – 10:37
- 5☿︎ Mercury10:37 – 11:45
- 6☽︎ Moon11:45 – 12:53
- 7♄︎ Saturn12:53 – 14:01
- 8♃︎ Jupiter14:01 – 15:10
- 9♂︎ Mars15:10 – 16:18
- 10☉︎ Sun16:18 – 17:26
- 11♀︎ Venus17:26 – 18:34
- 12☿︎ Mercury18:34 – 19:43
Night
- 1☽︎ Moon19:43 – 20:34
- 2♄︎ Saturn20:34 – 21:26
- 3♃︎ Jupiter21:26 – 22:18
- 4♂︎ Mars22:18 – 23:10
- 5☉︎ Sun23:10 – 00:02
- 6♀︎ Venus00:02 – 00:54
- 7☿︎ Mercury00:54 – 01:45
- 8☽︎ Moon01:45 – 02:37
- 9♄︎ Saturn02:37 – 03:29
- 10♃︎ Jupiter03:29 – 04:21
- 11♂︎ Mars04:21 – 05:13
- 12☉︎ Sun05:13 – 06:05
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Thursday, 20 August 2026, the Sun rises at 06:04 and sets at 19:43: the day lasts 13h 39m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 06:05, lasts 10h 22m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Jupiter, from 06:04 to 07:12: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.