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, 16 September 2025: day of Mars
- Sunrise
- 06:42
- Sunset
- 19:07
- Next sunrise
- 06:43
A day hour lasts 1h 02m; a night hour, 58 min. Local time (America/New_York).
Day
- 1♂︎ Mars06:42 – 07:44
- 2☉︎ Sun07:44 – 08:46
- 3♀︎ Venus08:46 – 09:48
- 4☿︎ Mercury09:48 – 10:50
- 5☽︎ Moon10:50 – 11:52
- 6♄︎ Saturn11:52 – 12:54
- 7♃︎ Jupiter12:54 – 13:57
- 8♂︎ Mars13:57 – 14:59
- 9☉︎ Sun14:59 – 16:01
- 10♀︎ Venus16:01 – 17:03
- 11☿︎ Mercury17:03 – 18:05
- 12☽︎ Moon18:05 – 19:07
Night
- 1♄︎ Saturn19:07 – 20:05
- 2♃︎ Jupiter20:05 – 21:03
- 3♂︎ Mars21:03 – 22:01
- 4☉︎ Sun22:01 – 22:59
- 5♀︎ Venus22:59 – 23:57
- 6☿︎ Mercury23:57 – 00:55
- 7☽︎ Moon00:55 – 01:53
- 8♄︎ Saturn01:53 – 02:51
- 9♃︎ Jupiter02:51 – 03:49
- 10♂︎ Mars03:49 – 04:47
- 11☉︎ Sun04:47 – 05:45
- 12♀︎ Venus05:45 – 06:43
Other cities · United States
Questions
How are the planetary hours calculated in Philadelphia?
On Tuesday, 16 September 2025, the Sun rises at 06:42 and sets at 19:07: the day lasts 12h 24m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:43, lasts 11h 37m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mars, from 06:42 to 07:44: 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.