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, 19 August 2026: day of Mercury
- Sunrise
- 06:06
- Sunset
- 20:46
- Next sunrise
- 06:08
A day hour lasts 1h 13m; a night hour, 47 min. Local time (Europe/London).
Day
- 1☿︎ Mercury06:06 – 07:20
- 2☽︎ Moon07:20 – 08:33
- 3♄︎ Saturn08:33 – 09:46
- 4♃︎ Jupiter09:46 – 11:00
- 5♂︎ Mars11:00 – 12:13
- 6☉︎ Sun12:13 – 13:26
- 7♀︎ Venus13:26 – 14:40
- 8☿︎ Mercury14:40 – 15:53
- 9☽︎ Moon15:53 – 17:06
- 10♄︎ Saturn17:06 – 18:19
- 11♃︎ Jupiter18:19 – 19:33
- 12♂︎ Mars19:33 – 20:46
Night
- 1☉︎ Sun20:46 – 21:33
- 2♀︎ Venus21:33 – 22:20
- 3☿︎ Mercury22:20 – 23:07
- 4☽︎ Moon23:07 – 23:53
- 5♄︎ Saturn23:53 – 00:40
- 6♃︎ Jupiter00:40 – 01:27
- 7♂︎ Mars01:27 – 02:14
- 8☉︎ Sun02:14 – 03:01
- 9♀︎ Venus03:01 – 03:48
- 10☿︎ Mercury03:48 – 04:34
- 11☽︎ Moon04:34 – 05:21
- 12♄︎ Saturn05:21 – 06:08
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Wednesday, 19 August 2026, the Sun rises at 06:06 and sets at 20:46: the day lasts 14h 40m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 06:08, lasts 9h 22m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Mercury, from 06:06 to 07:20: 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.