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, 9 September 2026: day of Mercury
- Sunrise
- 06:45
- Sunset
- 19:55
- Next sunrise
- 06:47
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/London).
Day
- 1☿︎ Mercury06:45 – 07:51
- 2☽︎ Moon07:51 – 08:57
- 3♄︎ Saturn08:57 – 10:02
- 4♃︎ Jupiter10:02 – 11:08
- 5♂︎ Mars11:08 – 12:14
- 6☉︎ Sun12:14 – 13:20
- 7♀︎ Venus13:20 – 14:26
- 8☿︎ Mercury14:26 – 15:32
- 9☽︎ Moon15:32 – 16:38
- 10♄︎ Saturn16:38 – 17:43
- 11♃︎ Jupiter17:43 – 18:49
- 12♂︎ Mars18:49 – 19:55
Night
- 1☉︎ Sun19:55 – 20:49
- 2♀︎ Venus20:49 – 21:44
- 3☿︎ Mercury21:44 – 22:38
- 4☽︎ Moon22:38 – 23:32
- 5♄︎ Saturn23:32 – 00:27
- 6♃︎ Jupiter00:27 – 01:21
- 7♂︎ Mars01:21 – 02:15
- 8☉︎ Sun02:15 – 03:09
- 9♀︎ Venus03:09 – 04:04
- 10☿︎ Mercury04:04 – 04:58
- 11☽︎ Moon04:58 – 05:52
- 12♄︎ Saturn05:52 – 06:47
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Wednesday, 9 September 2026, the Sun rises at 06:45 and sets at 19:55: the day lasts 13h 10m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 06:47, lasts 10h 52m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mercury, from 06:45 to 07:51: 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.