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 Sunday, 31 May 2026: day of the Sun
- Sunrise
- 04:55
- Sunset
- 21:47
- Next sunrise
- 04:54
A day hour lasts 1h 24m; a night hour, 36 min. Local time (Europe/London).
Day
- 1☉︎ Sun04:55 – 06:20
- 2♀︎ Venus06:20 – 07:44
- 3☿︎ Mercury07:44 – 09:08
- 4☽︎ Moon09:08 – 10:33
- 5♄︎ Saturn10:33 – 11:57
- 6♃︎ Jupiter11:57 – 13:21
- 7♂︎ Mars13:21 – 14:46
- 8☉︎ Sun14:46 – 16:10
- 9♀︎ Venus16:10 – 17:34
- 10☿︎ Mercury17:34 – 18:59
- 11☽︎ Moon18:59 – 20:23
- 12♄︎ Saturn20:23 – 21:47
Night
- 1♃︎ Jupiter21:47 – 22:23
- 2♂︎ Mars22:23 – 22:58
- 3☉︎ Sun22:58 – 23:34
- 4♀︎ Venus23:34 – 00:10
- 5☿︎ Mercury00:10 – 00:45
- 6☽︎ Moon00:45 – 01:21
- 7♄︎ Saturn01:21 – 01:56
- 8♃︎ Jupiter01:56 – 02:32
- 9♂︎ Mars02:32 – 03:08
- 10☉︎ Sun03:08 – 03:43
- 11♀︎ Venus03:43 – 04:19
- 12☿︎ Mercury04:19 – 04:54
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Sunday, 31 May 2026, the Sun rises at 04:55 and sets at 21:47: the day lasts 16h 52m, that is twelve day hours of 1h 24m. The night, until the next sunrise at 04:54, lasts 7h 07m: twelve night hours of 36 min.
Which planet rules the first hour that day?
The Sun, from 04:55 to 06:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.