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 Saturday, 16 January 2027: day of Saturn
- Sunrise
- 07:34
- Sunset
- 17:04
- Next sunrise
- 07:34
A day hour lasts 47 min; a night hour, 1h 12m. Local time (Europe/Rome).
Day
- 1♄︎ Saturn07:34 – 08:22
- 2♃︎ Jupiter08:22 – 09:09
- 3♂︎ Mars09:09 – 09:57
- 4☉︎ Sun09:57 – 10:44
- 5♀︎ Venus10:44 – 11:32
- 6☿︎ Mercury11:32 – 12:19
- 7☽︎ Moon12:19 – 13:07
- 8♄︎ Saturn13:07 – 13:54
- 9♃︎ Jupiter13:54 – 14:42
- 10♂︎ Mars14:42 – 15:29
- 11☉︎ Sun15:29 – 16:17
- 12♀︎ Venus16:17 – 17:04
Night
- 1☿︎ Mercury17:04 – 18:17
- 2☽︎ Moon18:17 – 19:29
- 3♄︎ Saturn19:29 – 20:42
- 4♃︎ Jupiter20:42 – 21:54
- 5♂︎ Mars21:54 – 23:07
- 6☉︎ Sun23:07 – 00:19
- 7♀︎ Venus00:19 – 01:32
- 8☿︎ Mercury01:32 – 02:44
- 9☽︎ Moon02:44 – 03:56
- 10♄︎ Saturn03:56 – 05:09
- 11♃︎ Jupiter05:09 – 06:21
- 12♂︎ Mars06:21 – 07:34
Questions
How are the planetary hours calculated in Rome?
On Saturday, 16 January 2027, the Sun rises at 07:34 and sets at 17:04: the day lasts 9h 30m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:34, lasts 14h 30m: twelve night hours of 1h 12m.
Which planet rules the first hour that day?
Saturn, from 07:34 to 08:22: 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.