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, 11 October 2025: day of Saturn
- Sunrise
- 07:45
- Sunset
- 18:34
- Next sunrise
- 07:47
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Europe/London).
Day
- 1♄︎ Saturn07:45 – 08:39
- 2♃︎ Jupiter08:39 – 09:33
- 3♂︎ Mars09:33 – 10:27
- 4☉︎ Sun10:27 – 11:21
- 5♀︎ Venus11:21 – 12:15
- 6☿︎ Mercury12:15 – 13:09
- 7☽︎ Moon13:09 – 14:04
- 8♄︎ Saturn14:04 – 14:58
- 9♃︎ Jupiter14:58 – 15:52
- 10♂︎ Mars15:52 – 16:46
- 11☉︎ Sun16:46 – 17:40
- 12♀︎ Venus17:40 – 18:34
Night
- 1☿︎ Mercury18:34 – 19:40
- 2☽︎ Moon19:40 – 20:46
- 3♄︎ Saturn20:46 – 21:52
- 4♃︎ Jupiter21:52 – 22:58
- 5♂︎ Mars22:58 – 00:04
- 6☉︎ Sun00:04 – 01:10
- 7♀︎ Venus01:10 – 02:16
- 8☿︎ Mercury02:16 – 03:22
- 9☽︎ Moon03:22 – 04:28
- 10♄︎ Saturn04:28 – 05:35
- 11♃︎ Jupiter05:35 – 06:41
- 12♂︎ Mars06:41 – 07:47
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Saturday, 11 October 2025, the Sun rises at 07:45 and sets at 18:34: the day lasts 10h 49m, that is twelve day hours of 54 min. The night, until the next sunrise at 07:47, lasts 13h 12m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Saturn, from 07:45 to 08:39: 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.