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, 5 May 2027: day of Mercury
- Sunrise
- 06:01
- Sunset
- 20:12
- Next sunrise
- 06:00
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Rome).
Day
- 1☿︎ Mercury06:01 – 07:12
- 2☽︎ Moon07:12 – 08:23
- 3♄︎ Saturn08:23 – 09:34
- 4♃︎ Jupiter09:34 – 10:45
- 5♂︎ Mars10:45 – 11:56
- 6☉︎ Sun11:56 – 13:07
- 7♀︎ Venus13:07 – 14:17
- 8☿︎ Mercury14:17 – 15:28
- 9☽︎ Moon15:28 – 16:39
- 10♄︎ Saturn16:39 – 17:50
- 11♃︎ Jupiter17:50 – 19:01
- 12♂︎ Mars19:01 – 20:12
Night
- 1☉︎ Sun20:12 – 21:01
- 2♀︎ Venus21:01 – 21:50
- 3☿︎ Mercury21:50 – 22:39
- 4☽︎ Moon22:39 – 23:28
- 5♄︎ Saturn23:28 – 00:17
- 6♃︎ Jupiter00:17 – 01:06
- 7♂︎ Mars01:06 – 01:55
- 8☉︎ Sun01:55 – 02:44
- 9♀︎ Venus02:44 – 03:33
- 10☿︎ Mercury03:33 – 04:22
- 11☽︎ Moon04:22 – 05:11
- 12♄︎ Saturn05:11 – 06:00
Questions
How are the planetary hours calculated in Rome?
On Wednesday, 5 May 2027, the Sun rises at 06:01 and sets at 20:12: the day lasts 14h 11m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 06:00, lasts 9h 48m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mercury, from 06:01 to 07:12: 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.