Planetary hours
in Rome.
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, 10 February 2027: day of Mercury
- Sunrise
- 07:12
- Sunset
- 17:36
- Next sunrise
- 07:11
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/Rome).
Day
- 1☿︎ Mercury07:12 – 08:04
- 2☽︎ Moon08:04 – 08:56
- 3♄︎ Saturn08:56 – 09:48
- 4♃︎ Jupiter09:48 – 10:40
- 5♂︎ Mars10:40 – 11:32
- 6☉︎ Sun11:32 – 12:24
- 7♀︎ Venus12:24 – 13:16
- 8☿︎ Mercury13:16 – 14:08
- 9☽︎ Moon14:08 – 15:00
- 10♄︎ Saturn15:00 – 15:52
- 11♃︎ Jupiter15:52 – 16:44
- 12♂︎ Mars16:44 – 17:36
Night
- 1☉︎ Sun17:36 – 18:44
- 2♀︎ Venus18:44 – 19:52
- 3☿︎ Mercury19:52 – 20:59
- 4☽︎ Moon20:59 – 22:07
- 5♄︎ Saturn22:07 – 23:15
- 6♃︎ Jupiter23:15 – 00:23
- 7♂︎ Mars00:23 – 01:31
- 8☉︎ Sun01:31 – 02:39
- 9♀︎ Venus02:39 – 03:47
- 10☿︎ Mercury03:47 – 04:55
- 11☽︎ Moon04:55 – 06:03
- 12♄︎ Saturn06:03 – 07:11
Questions
How are the planetary hours calculated in Rome?
On Wednesday, 10 February 2027, the Sun rises at 07:12 and sets at 17:36: the day lasts 10h 23m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:11, lasts 13h 35m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mercury, from 07:12 to 08:04: 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.