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 Friday, 15 January 2027: day of Venus
- Sunrise
- 07:15
- Sunset
- 16:44
- Next sunrise
- 07:15
A day hour lasts 47 min; a night hour, 1h 13m. Local time (America/Chicago).
Day
- 1♀︎ Venus07:15 – 08:03
- 2☿︎ Mercury08:03 – 08:50
- 3☽︎ Moon08:50 – 09:37
- 4♄︎ Saturn09:37 – 10:25
- 5♃︎ Jupiter10:25 – 11:12
- 6♂︎ Mars11:12 – 12:00
- 7☉︎ Sun12:00 – 12:47
- 8♀︎ Venus12:47 – 13:34
- 9☿︎ Mercury13:34 – 14:22
- 10☽︎ Moon14:22 – 15:09
- 11♄︎ Saturn15:09 – 15:57
- 12♃︎ Jupiter15:57 – 16:44
Night
- 1♂︎ Mars16:44 – 17:57
- 2☉︎ Sun17:57 – 19:09
- 3♀︎ Venus19:09 – 20:22
- 4☿︎ Mercury20:22 – 21:34
- 5☽︎ Moon21:34 – 22:47
- 6♄︎ Saturn22:47 – 23:59
- 7♃︎ Jupiter23:59 – 01:12
- 8♂︎ Mars01:12 – 02:25
- 9☉︎ Sun02:25 – 03:37
- 10♀︎ Venus03:37 – 04:50
- 11☿︎ Mercury04:50 – 06:02
- 12☽︎ Moon06:02 – 07:15
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Friday, 15 January 2027, the Sun rises at 07:15 and sets at 16:44: the day lasts 9h 29m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:15, lasts 14h 31m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Venus, from 07:15 to 08:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.