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, 15 July 2026: day of Mercury
- Sunrise
- 05:47
- Sunset
- 20:43
- Next sunrise
- 05:48
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Rome).
Day
- 1☿︎ Mercury05:47 – 07:02
- 2☽︎ Moon07:02 – 08:17
- 3♄︎ Saturn08:17 – 09:31
- 4♃︎ Jupiter09:31 – 10:46
- 5♂︎ Mars10:46 – 12:01
- 6☉︎ Sun12:01 – 13:15
- 7♀︎ Venus13:15 – 14:30
- 8☿︎ Mercury14:30 – 15:45
- 9☽︎ Moon15:45 – 16:59
- 10♄︎ Saturn16:59 – 18:14
- 11♃︎ Jupiter18:14 – 19:28
- 12♂︎ Mars19:28 – 20:43
Night
- 1☉︎ Sun20:43 – 21:29
- 2♀︎ Venus21:29 – 22:14
- 3☿︎ Mercury22:14 – 22:59
- 4☽︎ Moon22:59 – 23:45
- 5♄︎ Saturn23:45 – 00:30
- 6♃︎ Jupiter00:30 – 01:16
- 7♂︎ Mars01:16 – 02:01
- 8☉︎ Sun02:01 – 02:47
- 9♀︎ Venus02:47 – 03:32
- 10☿︎ Mercury03:32 – 04:17
- 11☽︎ Moon04:17 – 05:03
- 12♄︎ Saturn05:03 – 05:48
Questions
How are the planetary hours calculated in Rome?
On Wednesday, 15 July 2026, the Sun rises at 05:47 and sets at 20:43: the day lasts 14h 56m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:48, lasts 9h 05m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Mercury, from 05:47 to 07:02: 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.