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, 2 August 2025: day of Saturn
- Sunrise
- 05:36
- Sunset
- 21:22
- Next sunrise
- 05:38
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:36 – 06:55
- 2♃︎ Jupiter06:55 – 08:14
- 3♂︎ Mars08:14 – 09:32
- 4☉︎ Sun09:32 – 10:51
- 5♀︎ Venus10:51 – 12:10
- 6☿︎ Mercury12:10 – 13:29
- 7☽︎ Moon13:29 – 14:48
- 8♄︎ Saturn14:48 – 16:07
- 9♃︎ Jupiter16:07 – 17:25
- 10♂︎ Mars17:25 – 18:44
- 11☉︎ Sun18:44 – 20:03
- 12♀︎ Venus20:03 – 21:22
Night
- 1☿︎ Mercury21:22 – 22:03
- 2☽︎ Moon22:03 – 22:44
- 3♄︎ Saturn22:44 – 23:26
- 4♃︎ Jupiter23:26 – 00:07
- 5♂︎ Mars00:07 – 00:48
- 6☉︎ Sun00:48 – 01:30
- 7♀︎ Venus01:30 – 02:11
- 8☿︎ Mercury02:11 – 02:52
- 9☽︎ Moon02:52 – 03:34
- 10♄︎ Saturn03:34 – 04:15
- 11♃︎ Jupiter04:15 – 04:56
- 12♂︎ Mars04:56 – 05:38
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Saturday, 2 August 2025, the Sun rises at 05:36 and sets at 21:22: the day lasts 15h 46m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:38, lasts 8h 16m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Saturn, from 05:36 to 06:55: 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.