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, 25 December 2026: day of Venus
- Sunrise
- 08:45
- Sunset
- 16:01
- Next sunrise
- 08:46
A day hour lasts 36 min; a night hour, 1h 24m. Local time (Europe/London).
Day
- 1♀︎ Venus08:45 – 09:22
- 2☿︎ Mercury09:22 – 09:58
- 3☽︎ Moon09:58 – 10:34
- 4♄︎ Saturn10:34 – 11:11
- 5♃︎ Jupiter11:11 – 11:47
- 6♂︎ Mars11:47 – 12:23
- 7☉︎ Sun12:23 – 13:00
- 8♀︎ Venus13:00 – 13:36
- 9☿︎ Mercury13:36 – 14:12
- 10☽︎ Moon14:12 – 14:49
- 11♄︎ Saturn14:49 – 15:25
- 12♃︎ Jupiter15:25 – 16:01
Night
- 1♂︎ Mars16:01 – 17:25
- 2☉︎ Sun17:25 – 18:49
- 3♀︎ Venus18:49 – 20:12
- 4☿︎ Mercury20:12 – 21:36
- 5☽︎ Moon21:36 – 23:00
- 6♄︎ Saturn23:00 – 00:23
- 7♃︎ Jupiter00:23 – 01:47
- 8♂︎ Mars01:47 – 03:11
- 9☉︎ Sun03:11 – 04:35
- 10♀︎ Venus04:35 – 05:58
- 11☿︎ Mercury05:58 – 07:22
- 12☽︎ Moon07:22 – 08:46
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Friday, 25 December 2026, the Sun rises at 08:45 and sets at 16:01: the day lasts 7h 16m, that is twelve day hours of 36 min. The night, until the next sunrise at 08:46, lasts 16h 44m: twelve night hours of 1h 24m.
Which planet rules the first hour that day?
Venus, from 08:45 to 09:22: 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.