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, 15 December 2026: day of Mars
- Sunrise
- 07:15
- Sunset
- 16:36
- Next sunrise
- 07:15
A day hour lasts 47 min; a night hour, 1h 13m. Local time (America/New_York).
Day
- 1♂︎ Mars07:15 – 08:01
- 2☉︎ Sun08:01 – 08:48
- 3♀︎ Venus08:48 – 09:35
- 4☿︎ Mercury09:35 – 10:22
- 5☽︎ Moon10:22 – 11:09
- 6♄︎ Saturn11:09 – 11:55
- 7♃︎ Jupiter11:55 – 12:42
- 8♂︎ Mars12:42 – 13:29
- 9☉︎ Sun13:29 – 14:16
- 10♀︎ Venus14:16 – 15:02
- 11☿︎ Mercury15:02 – 15:49
- 12☽︎ Moon15:49 – 16:36
Night
- 1♄︎ Saturn16:36 – 17:49
- 2♃︎ Jupiter17:49 – 19:03
- 3♂︎ Mars19:03 – 20:16
- 4☉︎ Sun20:16 – 21:29
- 5♀︎ Venus21:29 – 22:42
- 6☿︎ Mercury22:42 – 23:56
- 7☽︎ Moon23:56 – 01:09
- 8♄︎ Saturn01:09 – 02:22
- 9♃︎ Jupiter02:22 – 03:36
- 10♂︎ Mars03:36 – 04:49
- 11☉︎ Sun04:49 – 06:02
- 12♀︎ Venus06:02 – 07:15
Other cities · United States
Questions
How are the planetary hours calculated in Philadelphia?
On Tuesday, 15 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 07:15, lasts 14h 39m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mars, from 07:15 to 08:01: 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.