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 Tuesday, 28 December 2027: day of Mars
- Sunrise
- 07:17
- Sunset
- 16:26
- Next sunrise
- 07:17
A day hour lasts 46 min; a night hour, 1h 14m. Local time (America/Chicago).
Day
- 1♂︎ Mars07:17 – 08:03
- 2☉︎ Sun08:03 – 08:48
- 3♀︎ Venus08:48 – 09:34
- 4☿︎ Mercury09:34 – 10:20
- 5☽︎ Moon10:20 – 11:06
- 6♄︎ Saturn11:06 – 11:52
- 7♃︎ Jupiter11:52 – 12:37
- 8♂︎ Mars12:37 – 13:23
- 9☉︎ Sun13:23 – 14:09
- 10♀︎ Venus14:09 – 14:55
- 11☿︎ Mercury14:55 – 15:41
- 12☽︎ Moon15:41 – 16:26
Night
- 1♄︎ Saturn16:26 – 17:41
- 2♃︎ Jupiter17:41 – 18:55
- 3♂︎ Mars18:55 – 20:09
- 4☉︎ Sun20:09 – 21:23
- 5♀︎ Venus21:23 – 22:38
- 6☿︎ Mercury22:38 – 23:52
- 7☽︎ Moon23:52 – 01:06
- 8♄︎ Saturn01:06 – 02:20
- 9♃︎ Jupiter02:20 – 03:34
- 10♂︎ Mars03:34 – 04:49
- 11☉︎ Sun04:49 – 06:03
- 12♀︎ Venus06:03 – 07:17
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Tuesday, 28 December 2027, the Sun rises at 07:17 and sets at 16:26: the day lasts 9h 10m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:17, lasts 14h 51m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mars, from 07:17 to 08:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.