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, 29 July 2026: day of Mercury
- Sunrise
- 05:29
- Sunset
- 21:30
- Next sunrise
- 05:30
A day hour lasts 1h 20m; a night hour, 40 min. Local time (Europe/London).
Day
- 1☿︎ Mercury05:29 – 06:49
- 2☽︎ Moon06:49 – 08:09
- 3♄︎ Saturn08:09 – 09:29
- 4♃︎ Jupiter09:29 – 10:49
- 5♂︎ Mars10:49 – 12:09
- 6☉︎ Sun12:09 – 13:29
- 7♀︎ Venus13:29 – 14:49
- 8☿︎ Mercury14:49 – 16:09
- 9☽︎ Moon16:09 – 17:29
- 10♄︎ Saturn17:29 – 18:49
- 11♃︎ Jupiter18:49 – 20:10
- 12♂︎ Mars20:10 – 21:30
Night
- 1☉︎ Sun21:30 – 22:10
- 2♀︎ Venus22:10 – 22:50
- 3☿︎ Mercury22:50 – 23:30
- 4☽︎ Moon23:30 – 00:10
- 5♄︎ Saturn00:10 – 00:50
- 6♃︎ Jupiter00:50 – 01:30
- 7♂︎ Mars01:30 – 02:10
- 8☉︎ Sun02:10 – 02:50
- 9♀︎ Venus02:50 – 03:30
- 10☿︎ Mercury03:30 – 04:10
- 11☽︎ Moon04:10 – 04:50
- 12♄︎ Saturn04:50 – 05:30
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Wednesday, 29 July 2026, the Sun rises at 05:29 and sets at 21:30: the day lasts 16h 01m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 05:30, lasts 8h 01m: twelve night hours of 40 min.
Which planet rules the first hour that day?
Mercury, from 05:29 to 06:49: 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.