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, 15 April 2026: day of Mercury
- Sunrise
- 06:10
- Sunset
- 19:31
- Next sunrise
- 06:08
A day hour lasts 1h 07m; a night hour, 53 min. Local time (America/Chicago).
Day
- 1☿︎ Mercury06:10 – 07:17
- 2☽︎ Moon07:17 – 08:23
- 3♄︎ Saturn08:23 – 09:30
- 4♃︎ Jupiter09:30 – 10:37
- 5♂︎ Mars10:37 – 11:44
- 6☉︎ Sun11:44 – 12:50
- 7♀︎ Venus12:50 – 13:57
- 8☿︎ Mercury13:57 – 15:04
- 9☽︎ Moon15:04 – 16:11
- 10♄︎ Saturn16:11 – 17:18
- 11♃︎ Jupiter17:18 – 18:24
- 12♂︎ Mars18:24 – 19:31
Night
- 1☉︎ Sun19:31 – 20:24
- 2♀︎ Venus20:24 – 21:17
- 3☿︎ Mercury21:17 – 22:10
- 4☽︎ Moon22:10 – 23:04
- 5♄︎ Saturn23:04 – 23:57
- 6♃︎ Jupiter23:57 – 00:50
- 7♂︎ Mars00:50 – 01:43
- 8☉︎ Sun01:43 – 02:36
- 9♀︎ Venus02:36 – 03:29
- 10☿︎ Mercury03:29 – 04:22
- 11☽︎ Moon04:22 – 05:15
- 12♄︎ Saturn05:15 – 06:08
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Wednesday, 15 April 2026, the Sun rises at 06:10 and sets at 19:31: the day lasts 13h 21m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 06:08, lasts 10h 37m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Mercury, from 06:10 to 07:17: 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.