Planetary hours
in Belfast.
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, 12 September 2026: day of Saturn
- Sunrise
- 06:50
- Sunset
- 19:48
- Next sunrise
- 06:52
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Europe/London).
Day
- 1♄︎ Saturn06:50 – 07:55
- 2♃︎ Jupiter07:55 – 09:00
- 3♂︎ Mars09:00 – 10:05
- 4☉︎ Sun10:05 – 11:09
- 5♀︎ Venus11:09 – 12:14
- 6☿︎ Mercury12:14 – 13:19
- 7☽︎ Moon13:19 – 14:24
- 8♄︎ Saturn14:24 – 15:28
- 9♃︎ Jupiter15:28 – 16:33
- 10♂︎ Mars16:33 – 17:38
- 11☉︎ Sun17:38 – 18:43
- 12♀︎ Venus18:43 – 19:48
Night
- 1☿︎ Mercury19:48 – 20:43
- 2☽︎ Moon20:43 – 21:38
- 3♄︎ Saturn21:38 – 22:34
- 4♃︎ Jupiter22:34 – 23:29
- 5♂︎ Mars23:29 – 00:24
- 6☉︎ Sun00:24 – 01:20
- 7♀︎ Venus01:20 – 02:15
- 8☿︎ Mercury02:15 – 03:11
- 9☽︎ Moon03:11 – 04:06
- 10♄︎ Saturn04:06 – 05:01
- 11♃︎ Jupiter05:01 – 05:57
- 12♂︎ Mars05:57 – 06:52
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Saturday, 12 September 2026, the Sun rises at 06:50 and sets at 19:48: the day lasts 12h 57m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:52, lasts 11h 05m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Saturn, from 06:50 to 07:55: 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.