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 Saturday, 9 January 2027: day of Saturn
- Sunrise
- 07:17
- Sunset
- 16:37
- Next sunrise
- 07:17
A day hour lasts 47 min; a night hour, 1h 13m. Local time (America/Chicago).
Day
- 1♄︎ Saturn07:17 – 08:04
- 2♃︎ Jupiter08:04 – 08:51
- 3♂︎ Mars08:51 – 09:37
- 4☉︎ Sun09:37 – 10:24
- 5♀︎ Venus10:24 – 11:11
- 6☿︎ Mercury11:11 – 11:57
- 7☽︎ Moon11:57 – 12:44
- 8♄︎ Saturn12:44 – 13:31
- 9♃︎ Jupiter13:31 – 14:17
- 10♂︎ Mars14:17 – 15:04
- 11☉︎ Sun15:04 – 15:51
- 12♀︎ Venus15:51 – 16:37
Night
- 1☿︎ Mercury16:37 – 17:51
- 2☽︎ Moon17:51 – 19:04
- 3♄︎ Saturn19:04 – 20:17
- 4♃︎ Jupiter20:17 – 21:31
- 5♂︎ Mars21:31 – 22:44
- 6☉︎ Sun22:44 – 23:57
- 7♀︎ Venus23:57 – 01:11
- 8☿︎ Mercury01:11 – 02:24
- 9☽︎ Moon02:24 – 03:37
- 10♄︎ Saturn03:37 – 04:50
- 11♃︎ Jupiter04:50 – 06:04
- 12♂︎ Mars06:04 – 07:17
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Saturday, 9 January 2027, the Sun rises at 07:17 and sets at 16:37: the day lasts 9h 20m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:17, lasts 14h 40m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Saturn, from 07:17 to 08:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.