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 Wednesday, 2 December 2026: day of Mercury
- Sunrise
- 08:23
- Sunset
- 16:01
- Next sunrise
- 08:25
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/London).
Day
- 1☿︎ Mercury08:23 – 09:02
- 2☽︎ Moon09:02 – 09:40
- 3♄︎ Saturn09:40 – 10:18
- 4♃︎ Jupiter10:18 – 10:56
- 5♂︎ Mars10:56 – 11:34
- 6☉︎ Sun11:34 – 12:12
- 7♀︎ Venus12:12 – 12:51
- 8☿︎ Mercury12:51 – 13:29
- 9☽︎ Moon13:29 – 14:07
- 10♄︎ Saturn14:07 – 14:45
- 11♃︎ Jupiter14:45 – 15:23
- 12♂︎ Mars15:23 – 16:01
Night
- 1☉︎ Sun16:01 – 17:23
- 2♀︎ Venus17:23 – 18:45
- 3☿︎ Mercury18:45 – 20:07
- 4☽︎ Moon20:07 – 21:29
- 5♄︎ Saturn21:29 – 22:51
- 6♃︎ Jupiter22:51 – 00:13
- 7♂︎ Mars00:13 – 01:35
- 8☉︎ Sun01:35 – 02:57
- 9♀︎ Venus02:57 – 04:19
- 10☿︎ Mercury04:19 – 05:41
- 11☽︎ Moon05:41 – 07:03
- 12♄︎ Saturn07:03 – 08:25
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Wednesday, 2 December 2026, the Sun rises at 08:23 and sets at 16:01: the day lasts 7h 38m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:25, lasts 16h 24m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Mercury, from 08:23 to 09:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.