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, 29 July 2026: day of Mercury
- Sunrise
- 06:00
- Sunset
- 20:31
- Next sunrise
- 06:01
A day hour lasts 1h 13m; a night hour, 47 min. Local time (Europe/Rome).
Day
- 1☿︎ Mercury06:00 – 07:13
- 2☽︎ Moon07:13 – 08:25
- 3♄︎ Saturn08:25 – 09:38
- 4♃︎ Jupiter09:38 – 10:50
- 5♂︎ Mars10:50 – 12:03
- 6☉︎ Sun12:03 – 13:16
- 7♀︎ Venus13:16 – 14:28
- 8☿︎ Mercury14:28 – 15:41
- 9☽︎ Moon15:41 – 16:53
- 10♄︎ Saturn16:53 – 18:06
- 11♃︎ Jupiter18:06 – 19:19
- 12♂︎ Mars19:19 – 20:31
Night
- 1☉︎ Sun20:31 – 21:19
- 2♀︎ Venus21:19 – 22:06
- 3☿︎ Mercury22:06 – 22:54
- 4☽︎ Moon22:54 – 23:41
- 5♄︎ Saturn23:41 – 00:29
- 6♃︎ Jupiter00:29 – 01:16
- 7♂︎ Mars01:16 – 02:04
- 8☉︎ Sun02:04 – 02:51
- 9♀︎ Venus02:51 – 03:39
- 10☿︎ Mercury03:39 – 04:26
- 11☽︎ Moon04:26 – 05:14
- 12♄︎ Saturn05:14 – 06:01
Questions
How are the planetary hours calculated in Rome?
On Wednesday, 29 July 2026, the Sun rises at 06:00 and sets at 20:31: the day lasts 14h 31m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 06:01, lasts 9h 30m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Mercury, from 06:00 to 07:13: 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.