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, 12 August 2026: day of Mercury
- Sunrise
- 06:09
- Sunset
- 20:01
- Next sunrise
- 06:10
A day hour lasts 1h 09m; a night hour, 51 min. Local time (America/New_York).
Day
- 1☿︎ Mercury06:09 – 07:18
- 2☽︎ Moon07:18 – 08:28
- 3♄︎ Saturn08:28 – 09:37
- 4♃︎ Jupiter09:37 – 10:46
- 5♂︎ Mars10:46 – 11:56
- 6☉︎ Sun11:56 – 13:05
- 7♀︎ Venus13:05 – 14:14
- 8☿︎ Mercury14:14 – 15:23
- 9☽︎ Moon15:23 – 16:33
- 10♄︎ Saturn16:33 – 17:42
- 11♃︎ Jupiter17:42 – 18:51
- 12♂︎ Mars18:51 – 20:01
Night
- 1☉︎ Sun20:01 – 20:51
- 2♀︎ Venus20:51 – 21:42
- 3☿︎ Mercury21:42 – 22:33
- 4☽︎ Moon22:33 – 23:24
- 5♄︎ Saturn23:24 – 00:15
- 6♃︎ Jupiter00:15 – 01:05
- 7♂︎ Mars01:05 – 01:56
- 8☉︎ Sun01:56 – 02:47
- 9♀︎ Venus02:47 – 03:38
- 10☿︎ Mercury03:38 – 04:28
- 11☽︎ Moon04:28 – 05:19
- 12♄︎ Saturn05:19 – 06:10
Other cities · United States
Questions
How are the planetary hours calculated in Philadelphia?
On Wednesday, 12 August 2026, the Sun rises at 06:09 and sets at 20:01: the day lasts 13h 51m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:10, lasts 10h 09m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Mercury, from 06:09 to 07:18: 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.