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 Monday, 12 January 2026: day of the Moon
- Sunrise
- 08:40
- Sunset
- 16:24
- Next sunrise
- 08:39
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/London).
Day
- 1☽︎ Moon08:40 – 09:18
- 2♄︎ Saturn09:18 – 09:57
- 3♃︎ Jupiter09:57 – 10:36
- 4♂︎ Mars10:36 – 11:14
- 5☉︎ Sun11:14 – 11:53
- 6♀︎ Venus11:53 – 12:32
- 7☿︎ Mercury12:32 – 13:10
- 8☽︎ Moon13:10 – 13:49
- 9♄︎ Saturn13:49 – 14:28
- 10♃︎ Jupiter14:28 – 15:06
- 11♂︎ Mars15:06 – 15:45
- 12☉︎ Sun15:45 – 16:24
Night
- 1♀︎ Venus16:24 – 17:45
- 2☿︎ Mercury17:45 – 19:06
- 3☽︎ Moon19:06 – 20:28
- 4♄︎ Saturn20:28 – 21:49
- 5♃︎ Jupiter21:49 – 23:10
- 6♂︎ Mars23:10 – 00:31
- 7☉︎ Sun00:31 – 01:53
- 8♀︎ Venus01:53 – 03:14
- 9☿︎ Mercury03:14 – 04:35
- 10☽︎ Moon04:35 – 05:56
- 11♄︎ Saturn05:56 – 07:18
- 12♃︎ Jupiter07:18 – 08:39
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Monday, 12 January 2026, the Sun rises at 08:40 and sets at 16:24: the day lasts 7h 44m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:39, lasts 16h 15m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
The Moon, from 08:40 to 09:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.