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 Tuesday, 8 December 2026: day of Mars
- Sunrise
- 08:32
- Sunset
- 15:58
- Next sunrise
- 08:33
A day hour lasts 37 min; a night hour, 1h 23m. Local time (Europe/London).
Day
- 1♂︎ Mars08:32 – 09:09
- 2☉︎ Sun09:09 – 09:46
- 3♀︎ Venus09:46 – 10:23
- 4☿︎ Mercury10:23 – 11:01
- 5☽︎ Moon11:01 – 11:38
- 6♄︎ Saturn11:38 – 12:15
- 7♃︎ Jupiter12:15 – 12:52
- 8♂︎ Mars12:52 – 13:29
- 9☉︎ Sun13:29 – 14:07
- 10♀︎ Venus14:07 – 14:44
- 11☿︎ Mercury14:44 – 15:21
- 12☽︎ Moon15:21 – 15:58
Night
- 1♄︎ Saturn15:58 – 17:21
- 2♃︎ Jupiter17:21 – 18:44
- 3♂︎ Mars18:44 – 20:07
- 4☉︎ Sun20:07 – 21:30
- 5♀︎ Venus21:30 – 22:53
- 6☿︎ Mercury22:53 – 00:16
- 7☽︎ Moon00:16 – 01:39
- 8♄︎ Saturn01:39 – 03:01
- 9♃︎ Jupiter03:01 – 04:24
- 10♂︎ Mars04:24 – 05:47
- 11☉︎ Sun05:47 – 07:10
- 12♀︎ Venus07:10 – 08:33
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Tuesday, 8 December 2026, the Sun rises at 08:32 and sets at 15:58: the day lasts 7h 26m, that is twelve day hours of 37 min. The night, until the next sunrise at 08:33, lasts 16h 35m: twelve night hours of 1h 23m.
Which planet rules the first hour that day?
Mars, from 08:32 to 09:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.