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 Saturday, 17 October 2026: day of Saturn
- Sunrise
- 07:13
- Sunset
- 18:18
- Next sunrise
- 07:14
A day hour lasts 55 min; a night hour, 1h 05m. Local time (America/New_York).
Day
- 1♄︎ Saturn07:13 – 08:08
- 2♃︎ Jupiter08:08 – 09:04
- 3♂︎ Mars09:04 – 09:59
- 4☉︎ Sun09:59 – 10:54
- 5♀︎ Venus10:54 – 11:50
- 6☿︎ Mercury11:50 – 12:45
- 7☽︎ Moon12:45 – 13:41
- 8♄︎ Saturn13:41 – 14:36
- 9♃︎ Jupiter14:36 – 15:31
- 10♂︎ Mars15:31 – 16:27
- 11☉︎ Sun16:27 – 17:22
- 12♀︎ Venus17:22 – 18:18
Night
- 1☿︎ Mercury18:18 – 19:22
- 2☽︎ Moon19:22 – 20:27
- 3♄︎ Saturn20:27 – 21:32
- 4♃︎ Jupiter21:32 – 22:36
- 5♂︎ Mars22:36 – 23:41
- 6☉︎ Sun23:41 – 00:46
- 7♀︎ Venus00:46 – 01:50
- 8☿︎ Mercury01:50 – 02:55
- 9☽︎ Moon02:55 – 04:00
- 10♄︎ Saturn04:00 – 05:04
- 11♃︎ Jupiter05:04 – 06:09
- 12♂︎ Mars06:09 – 07:14
Other cities · United States
Questions
How are the planetary hours calculated in Philadelphia?
On Saturday, 17 October 2026, the Sun rises at 07:13 and sets at 18:18: the day lasts 11h 05m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:14, lasts 12h 56m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Saturn, from 07:13 to 08:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.