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, 30 December 2026: day of Mercury
- Sunrise
- 08:46
- Sunset
- 16:06
- Next sunrise
- 08:46
A day hour lasts 37 min; a night hour, 1h 23m. Local time (Europe/London).
Day
- 1☿︎ Mercury08:46 – 09:23
- 2☽︎ Moon09:23 – 09:59
- 3♄︎ Saturn09:59 – 10:36
- 4♃︎ Jupiter10:36 – 11:13
- 5♂︎ Mars11:13 – 11:49
- 6☉︎ Sun11:49 – 12:26
- 7♀︎ Venus12:26 – 13:02
- 8☿︎ Mercury13:02 – 13:39
- 9☽︎ Moon13:39 – 14:16
- 10♄︎ Saturn14:16 – 14:52
- 11♃︎ Jupiter14:52 – 15:29
- 12♂︎ Mars15:29 – 16:06
Night
- 1☉︎ Sun16:06 – 17:29
- 2♀︎ Venus17:29 – 18:52
- 3☿︎ Mercury18:52 – 20:16
- 4☽︎ Moon20:16 – 21:39
- 5♄︎ Saturn21:39 – 23:02
- 6♃︎ Jupiter23:02 – 00:26
- 7♂︎ Mars00:26 – 01:49
- 8☉︎ Sun01:49 – 03:12
- 9♀︎ Venus03:12 – 04:36
- 10☿︎ Mercury04:36 – 05:59
- 11☽︎ Moon05:59 – 07:22
- 12♄︎ Saturn07:22 – 08:46
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Wednesday, 30 December 2026, the Sun rises at 08:46 and sets at 16:06: the day lasts 7h 20m, that is twelve day hours of 37 min. The night, until the next sunrise at 08:46, lasts 16h 40m: twelve night hours of 1h 23m.
Which planet rules the first hour that day?
Mercury, 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: 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.