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 Wednesday, 19 August 2026: day of Mercury
- Sunrise
- 06:03
- Sunset
- 19:44
- Next sunrise
- 06:04
A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Chicago).
Day
- 1☿︎ Mercury06:03 – 07:11
- 2☽︎ Moon07:11 – 08:19
- 3♄︎ Saturn08:19 – 09:28
- 4♃︎ Jupiter09:28 – 10:36
- 5♂︎ Mars10:36 – 11:45
- 6☉︎ Sun11:45 – 12:53
- 7♀︎ Venus12:53 – 14:02
- 8☿︎ Mercury14:02 – 15:10
- 9☽︎ Moon15:10 – 16:19
- 10♄︎ Saturn16:19 – 17:27
- 11♃︎ Jupiter17:27 – 18:36
- 12♂︎ Mars18:36 – 19:44
Night
- 1☉︎ Sun19:44 – 20:36
- 2♀︎ Venus20:36 – 21:27
- 3☿︎ Mercury21:27 – 22:19
- 4☽︎ Moon22:19 – 23:11
- 5♄︎ Saturn23:11 – 00:02
- 6♃︎ Jupiter00:02 – 00:54
- 7♂︎ Mars00:54 – 01:45
- 8☉︎ Sun01:45 – 02:37
- 9♀︎ Venus02:37 – 03:29
- 10☿︎ Mercury03:29 – 04:20
- 11☽︎ Moon04:20 – 05:12
- 12♄︎ Saturn05:12 – 06:04
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Wednesday, 19 August 2026, the Sun rises at 06:03 and sets at 19:44: the day lasts 13h 42m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 06:04, lasts 10h 19m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Mercury, from 06:03 to 07:11: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.