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, 31 August 2026: day of the Moon
- Sunrise
- 06:28
- Sunset
- 20:17
- Next sunrise
- 06:30
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Europe/London).
Day
- 1☽︎ Moon06:28 – 07:37
- 2♄︎ Saturn07:37 – 08:47
- 3♃︎ Jupiter08:47 – 09:56
- 4♂︎ Mars09:56 – 11:05
- 5☉︎ Sun11:05 – 12:14
- 6♀︎ Venus12:14 – 13:23
- 7☿︎ Mercury13:23 – 14:32
- 8☽︎ Moon14:32 – 15:41
- 9♄︎ Saturn15:41 – 16:50
- 10♃︎ Jupiter16:50 – 17:59
- 11♂︎ Mars17:59 – 19:08
- 12☉︎ Sun19:08 – 20:17
Night
- 1♀︎ Venus20:17 – 21:09
- 2☿︎ Mercury21:09 – 22:00
- 3☽︎ Moon22:00 – 22:51
- 4♄︎ Saturn22:51 – 23:42
- 5♃︎ Jupiter23:42 – 00:33
- 6♂︎ Mars00:33 – 01:24
- 7☉︎ Sun01:24 – 02:15
- 8♀︎ Venus02:15 – 03:06
- 9☿︎ Mercury03:06 – 03:57
- 10☽︎ Moon03:57 – 04:48
- 11♄︎ Saturn04:48 – 05:39
- 12♃︎ Jupiter05:39 – 06:30
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Monday, 31 August 2026, the Sun rises at 06:28 and sets at 20:17: the day lasts 13h 49m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:30, lasts 10h 13m: twelve night hours of 51 min.
Which planet rules the first hour that day?
The Moon, from 06:28 to 07:37: 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.