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 Sunday, 20 September 2026: day of the Sun
- Sunrise
- 07:05
- Sunset
- 19:27
- Next sunrise
- 07:07
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/London).
Day
- 1☉︎ Sun07:05 – 08:07
- 2♀︎ Venus08:07 – 09:09
- 3☿︎ Mercury09:09 – 10:10
- 4☽︎ Moon10:10 – 11:12
- 5♄︎ Saturn11:12 – 12:14
- 6♃︎ Jupiter12:14 – 13:16
- 7♂︎ Mars13:16 – 14:18
- 8☉︎ Sun14:18 – 15:20
- 9♀︎ Venus15:20 – 16:22
- 10☿︎ Mercury16:22 – 17:23
- 11☽︎ Moon17:23 – 18:25
- 12♄︎ Saturn18:25 – 19:27
Night
- 1♃︎ Jupiter19:27 – 20:26
- 2♂︎ Mars20:26 – 21:24
- 3☉︎ Sun21:24 – 22:22
- 4♀︎ Venus22:22 – 23:20
- 5☿︎ Mercury23:20 – 00:19
- 6☽︎ Moon00:19 – 01:17
- 7♄︎ Saturn01:17 – 02:15
- 8♃︎ Jupiter02:15 – 03:14
- 9♂︎ Mars03:14 – 04:12
- 10☉︎ Sun04:12 – 05:10
- 11♀︎ Venus05:10 – 06:08
- 12☿︎ Mercury06:08 – 07:07
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Sunday, 20 September 2026, the Sun rises at 07:05 and sets at 19:27: the day lasts 12h 22m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:07, lasts 11h 40m: twelve night hours of 58 min.
Which planet rules the first hour that day?
The Sun, from 07:05 to 08:07: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.