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, 10 January 2027: day of the Sun
- Sunrise
- 07:17
- Sunset
- 16:39
- Next sunrise
- 07:17
A day hour lasts 47 min; a night hour, 1h 13m. Local time (America/Chicago).
Day
- 1☉︎ Sun07:17 – 08:04
- 2♀︎ Venus08:04 – 08:51
- 3☿︎ Mercury08:51 – 09:37
- 4☽︎ Moon09:37 – 10:24
- 5♄︎ Saturn10:24 – 11:11
- 6♃︎ Jupiter11:11 – 11:58
- 7♂︎ Mars11:58 – 12:45
- 8☉︎ Sun12:45 – 13:31
- 9♀︎ Venus13:31 – 14:18
- 10☿︎ Mercury14:18 – 15:05
- 11☽︎ Moon15:05 – 15:52
- 12♄︎ Saturn15:52 – 16:39
Night
- 1♃︎ Jupiter16:39 – 17:52
- 2♂︎ Mars17:52 – 19:05
- 3☉︎ Sun19:05 – 20:18
- 4♀︎ Venus20:18 – 21:31
- 5☿︎ Mercury21:31 – 22:44
- 6☽︎ Moon22:44 – 23:58
- 7♄︎ Saturn23:58 – 01:11
- 8♃︎ Jupiter01:11 – 02:24
- 9♂︎ Mars02:24 – 03:37
- 10☉︎ Sun03:37 – 04:50
- 11♀︎ Venus04:50 – 06:04
- 12☿︎ Mercury06:04 – 07:17
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Sunday, 10 January 2027, the Sun rises at 07:17 and sets at 16:39: the day lasts 9h 22m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:17, lasts 14h 38m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
The Sun, 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: 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.