Planetary hours
in Philadelphia.
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 Wednesday, 16 December 2026: day of Mercury
- Sunrise
- 07:15
- Sunset
- 16:36
- Next sunrise
- 07:16
A day hour lasts 47 min; a night hour, 1h 13m. Local time (America/New_York).
Day
- 1☿︎ Mercury07:15 – 08:02
- 2☽︎ Moon08:02 – 08:49
- 3♄︎ Saturn08:49 – 09:36
- 4♃︎ Jupiter09:36 – 10:22
- 5♂︎ Mars10:22 – 11:09
- 6☉︎ Sun11:09 – 11:56
- 7♀︎ Venus11:56 – 12:43
- 8☿︎ Mercury12:43 – 13:29
- 9☽︎ Moon13:29 – 14:16
- 10♄︎ Saturn14:16 – 15:03
- 11♃︎ Jupiter15:03 – 15:50
- 12♂︎ Mars15:50 – 16:36
Night
- 1☉︎ Sun16:36 – 17:50
- 2♀︎ Venus17:50 – 19:03
- 3☿︎ Mercury19:03 – 20:16
- 4☽︎ Moon20:16 – 21:30
- 5♄︎ Saturn21:30 – 22:43
- 6♃︎ Jupiter22:43 – 23:56
- 7♂︎ Mars23:56 – 01:09
- 8☉︎ Sun01:09 – 02:23
- 9♀︎ Venus02:23 – 03:36
- 10☿︎ Mercury03:36 – 04:49
- 11☽︎ Moon04:49 – 06:03
- 12♄︎ Saturn06:03 – 07:16
Other cities · United States
Questions
How are the planetary hours calculated in Philadelphia?
On Wednesday, 16 December 2026, the Sun rises at 07:15 and sets at 16:36: the day lasts 9h 21m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:16, lasts 14h 40m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mercury, from 07:15 to 08:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.