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, 9 August 2025: day of Saturn
- Sunrise
- 05:48
- Sunset
- 21:08
- Next sunrise
- 05:50
A day hour lasts 1h 17m; a night hour, 44 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:48 – 07:05
- 2♃︎ Jupiter07:05 – 08:22
- 3♂︎ Mars08:22 – 09:38
- 4☉︎ Sun09:38 – 10:55
- 5♀︎ Venus10:55 – 12:11
- 6☿︎ Mercury12:11 – 13:28
- 7☽︎ Moon13:28 – 14:45
- 8♄︎ Saturn14:45 – 16:01
- 9♃︎ Jupiter16:01 – 17:18
- 10♂︎ Mars17:18 – 18:34
- 11☉︎ Sun18:34 – 19:51
- 12♀︎ Venus19:51 – 21:08
Night
- 1☿︎ Mercury21:08 – 21:51
- 2☽︎ Moon21:51 – 22:35
- 3♄︎ Saturn22:35 – 23:18
- 4♃︎ Jupiter23:18 – 00:02
- 5♂︎ Mars00:02 – 00:45
- 6☉︎ Sun00:45 – 01:29
- 7♀︎ Venus01:29 – 02:13
- 8☿︎ Mercury02:13 – 02:56
- 9☽︎ Moon02:56 – 03:40
- 10♄︎ Saturn03:40 – 04:23
- 11♃︎ Jupiter04:23 – 05:07
- 12♂︎ Mars05:07 – 05:50
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Saturday, 9 August 2025, the Sun rises at 05:48 and sets at 21:08: the day lasts 15h 19m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:50, lasts 8h 43m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Saturn, from 05:48 to 07:05: 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.