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 Thursday, 31 December 2026: day of Jupiter
- Sunrise
- 08:46
- Sunset
- 16:07
- Next sunrise
- 08:46
A day hour lasts 37 min; a night hour, 1h 23m. Local time (Europe/London).
Day
- 1♃︎ Jupiter08:46 – 09:23
- 2♂︎ Mars09:23 – 09:59
- 3☉︎ Sun09:59 – 10:36
- 4♀︎ Venus10:36 – 11:13
- 5☿︎ Mercury11:13 – 11:50
- 6☽︎ Moon11:50 – 12:26
- 7♄︎ Saturn12:26 – 13:03
- 8♃︎ Jupiter13:03 – 13:40
- 9♂︎ Mars13:40 – 14:17
- 10☉︎ Sun14:17 – 14:53
- 11♀︎ Venus14:53 – 15:30
- 12☿︎ Mercury15:30 – 16:07
Night
- 1☽︎ Moon16:07 – 17:30
- 2♄︎ Saturn17:30 – 18:53
- 3♃︎ Jupiter18:53 – 20:17
- 4♂︎ Mars20:17 – 21:40
- 5☉︎ Sun21:40 – 23:03
- 6♀︎ Venus23:03 – 00:26
- 7☿︎ Mercury00:26 – 01:49
- 8☽︎ Moon01:49 – 03:13
- 9♄︎ Saturn03:13 – 04:36
- 10♃︎ Jupiter04:36 – 05:59
- 11♂︎ Mars05:59 – 07:22
- 12☉︎ Sun07:22 – 08:46
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Thursday, 31 December 2026, the Sun rises at 08:46 and sets at 16:07: the day lasts 7h 21m, that is twelve day hours of 37 min. The night, until the next sunrise at 08:46, lasts 16h 39m: twelve night hours of 1h 23m.
Which planet rules the first hour that day?
Jupiter, from 08:46 to 09:23: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.