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, 31 July 2026: day of Venus
- Sunrise
- 05:32
- Sunset
- 21:26
- Next sunrise
- 05:34
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/London).
Day
- 1♀︎ Venus05:32 – 06:52
- 2☿︎ Mercury06:52 – 08:11
- 3☽︎ Moon08:11 – 09:31
- 4♄︎ Saturn09:31 – 10:50
- 5♃︎ Jupiter10:50 – 12:10
- 6♂︎ Mars12:10 – 13:29
- 7☉︎ Sun13:29 – 14:49
- 8♀︎ Venus14:49 – 16:08
- 9☿︎ Mercury16:08 – 17:28
- 10☽︎ Moon17:28 – 18:47
- 11♄︎ Saturn18:47 – 20:07
- 12♃︎ Jupiter20:07 – 21:26
Night
- 1♂︎ Mars21:26 – 22:07
- 2☉︎ Sun22:07 – 22:47
- 3♀︎ Venus22:47 – 23:28
- 4☿︎ Mercury23:28 – 00:09
- 5☽︎ Moon00:09 – 00:49
- 6♄︎ Saturn00:49 – 01:30
- 7♃︎ Jupiter01:30 – 02:11
- 8♂︎ Mars02:11 – 02:51
- 9☉︎ Sun02:51 – 03:32
- 10♀︎ Venus03:32 – 04:13
- 11☿︎ Mercury04:13 – 04:53
- 12☽︎ Moon04:53 – 05:34
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Friday, 31 July 2026, the Sun rises at 05:32 and sets at 21:26: the day lasts 15h 54m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:34, lasts 8h 08m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Venus, from 05:32 to 06:52: 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.