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 Thursday, 16 October 2025: day of Jupiter
- Sunrise
- 07:54
- Sunset
- 18:22
- Next sunrise
- 07:56
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/London).
Day
- 1♃︎ Jupiter07:54 – 08:47
- 2♂︎ Mars08:47 – 09:39
- 3☉︎ Sun09:39 – 10:31
- 4♀︎ Venus10:31 – 11:24
- 5☿︎ Mercury11:24 – 12:16
- 6☽︎ Moon12:16 – 13:08
- 7♄︎ Saturn13:08 – 14:01
- 8♃︎ Jupiter14:01 – 14:53
- 9♂︎ Mars14:53 – 15:45
- 10☉︎ Sun15:45 – 16:38
- 11♀︎ Venus16:38 – 17:30
- 12☿︎ Mercury17:30 – 18:22
Night
- 1☽︎ Moon18:22 – 19:30
- 2♄︎ Saturn19:30 – 20:38
- 3♃︎ Jupiter20:38 – 21:46
- 4♂︎ Mars21:46 – 22:54
- 5☉︎ Sun22:54 – 00:01
- 6♀︎ Venus00:01 – 01:09
- 7☿︎ Mercury01:09 – 02:17
- 8☽︎ Moon02:17 – 03:25
- 9♄︎ Saturn03:25 – 04:33
- 10♃︎ Jupiter04:33 – 05:41
- 11♂︎ Mars05:41 – 06:48
- 12☉︎ Sun06:48 – 07:56
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Thursday, 16 October 2025, the Sun rises at 07:54 and sets at 18:22: the day lasts 10h 28m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:56, lasts 13h 34m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Jupiter, from 07:54 to 08:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.