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 Sunday, 18 October 2026: day of the Sun
- Sunrise
- 07:06
- Sunset
- 18:04
- Next sunrise
- 07:07
A day hour lasts 55 min; a night hour, 1h 05m. Local time (America/Chicago).
Day
- 1☉︎ Sun07:06 – 08:01
- 2♀︎ Venus08:01 – 08:56
- 3☿︎ Mercury08:56 – 09:50
- 4☽︎ Moon09:50 – 10:45
- 5♄︎ Saturn10:45 – 11:40
- 6♃︎ Jupiter11:40 – 12:35
- 7♂︎ Mars12:35 – 13:30
- 8☉︎ Sun13:30 – 14:25
- 9♀︎ Venus14:25 – 15:19
- 10☿︎ Mercury15:19 – 16:14
- 11☽︎ Moon16:14 – 17:09
- 12♄︎ Saturn17:09 – 18:04
Night
- 1♃︎ Jupiter18:04 – 19:09
- 2♂︎ Mars19:09 – 20:14
- 3☉︎ Sun20:14 – 21:20
- 4♀︎ Venus21:20 – 22:25
- 5☿︎ Mercury22:25 – 23:30
- 6☽︎ Moon23:30 – 00:35
- 7♄︎ Saturn00:35 – 01:41
- 8♃︎ Jupiter01:41 – 02:46
- 9♂︎ Mars02:46 – 03:51
- 10☉︎ Sun03:51 – 04:57
- 11♀︎ Venus04:57 – 06:02
- 12☿︎ Mercury06:02 – 07:07
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Sunday, 18 October 2026, the Sun rises at 07:06 and sets at 18:04: the day lasts 10h 58m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:07, lasts 13h 03m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
The Sun, from 07:06 to 08:01: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.