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 Friday, 4 December 2026: day of Venus
- Sunrise
- 08:26
- Sunset
- 16:00
- Next sunrise
- 08:28
A day hour lasts 38 min; a night hour, 1h 22m. Local time (Europe/London).
Day
- 1♀︎ Venus08:26 – 09:04
- 2☿︎ Mercury09:04 – 09:42
- 3☽︎ Moon09:42 – 10:20
- 4♄︎ Saturn10:20 – 10:58
- 5♃︎ Jupiter10:58 – 11:35
- 6♂︎ Mars11:35 – 12:13
- 7☉︎ Sun12:13 – 12:51
- 8♀︎ Venus12:51 – 13:29
- 9☿︎ Mercury13:29 – 14:07
- 10☽︎ Moon14:07 – 14:44
- 11♄︎ Saturn14:44 – 15:22
- 12♃︎ Jupiter15:22 – 16:00
Night
- 1♂︎ Mars16:00 – 17:22
- 2☉︎ Sun17:22 – 18:45
- 3♀︎ Venus18:45 – 20:07
- 4☿︎ Mercury20:07 – 21:29
- 5☽︎ Moon21:29 – 22:52
- 6♄︎ Saturn22:52 – 00:14
- 7♃︎ Jupiter00:14 – 01:36
- 8♂︎ Mars01:36 – 02:59
- 9☉︎ Sun02:59 – 04:21
- 10♀︎ Venus04:21 – 05:43
- 11☿︎ Mercury05:43 – 07:06
- 12☽︎ Moon07:06 – 08:28
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Friday, 4 December 2026, the Sun rises at 08:26 and sets at 16:00: the day lasts 7h 34m, that is twelve day hours of 38 min. The night, until the next sunrise at 08:28, lasts 16h 28m: twelve night hours of 1h 22m.
Which planet rules the first hour that day?
Venus, from 08:26 to 09:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.