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 Tuesday, 9 December 2025: day of Mars
- Sunrise
- 07:10
- Sunset
- 16:35
- Next sunrise
- 07:11
A day hour lasts 47 min; a night hour, 1h 13m. Local time (America/New_York).
Day
- 1♂︎ Mars07:10 – 07:57
- 2☉︎ Sun07:57 – 08:44
- 3♀︎ Venus08:44 – 09:31
- 4☿︎ Mercury09:31 – 10:18
- 5☽︎ Moon10:18 – 11:06
- 6♄︎ Saturn11:06 – 11:53
- 7♃︎ Jupiter11:53 – 12:40
- 8♂︎ Mars12:40 – 13:27
- 9☉︎ Sun13:27 – 14:14
- 10♀︎ Venus14:14 – 15:01
- 11☿︎ Mercury15:01 – 15:48
- 12☽︎ Moon15:48 – 16:35
Night
- 1♄︎ Saturn16:35 – 17:48
- 2♃︎ Jupiter17:48 – 19:01
- 3♂︎ Mars19:01 – 20:14
- 4☉︎ Sun20:14 – 21:27
- 5♀︎ Venus21:27 – 22:40
- 6☿︎ Mercury22:40 – 23:53
- 7☽︎ Moon23:53 – 01:06
- 8♄︎ Saturn01:06 – 02:19
- 9♃︎ Jupiter02:19 – 03:32
- 10♂︎ Mars03:32 – 04:45
- 11☉︎ Sun04:45 – 05:58
- 12♀︎ Venus05:58 – 07:11
Other cities · United States
Questions
How are the planetary hours calculated in Philadelphia?
On Tuesday, 9 December 2025, the Sun rises at 07:10 and sets at 16:35: the day lasts 9h 25m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:11, lasts 14h 36m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mars, from 07:10 to 07:57: 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.