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 Saturday, 16 May 2026: day of Saturn
- Sunrise
- 05:16
- Sunset
- 21:24
- Next sunrise
- 05:14
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:16 – 06:37
- 2♃︎ Jupiter06:37 – 07:57
- 3♂︎ Mars07:57 – 09:18
- 4☉︎ Sun09:18 – 10:39
- 5♀︎ Venus10:39 – 11:59
- 6☿︎ Mercury11:59 – 13:20
- 7☽︎ Moon13:20 – 14:41
- 8♄︎ Saturn14:41 – 16:02
- 9♃︎ Jupiter16:02 – 17:22
- 10♂︎ Mars17:22 – 18:43
- 11☉︎ Sun18:43 – 20:04
- 12♀︎ Venus20:04 – 21:24
Night
- 1☿︎ Mercury21:24 – 22:04
- 2☽︎ Moon22:04 – 22:43
- 3♄︎ Saturn22:43 – 23:22
- 4♃︎ Jupiter23:22 – 00:01
- 5♂︎ Mars00:01 – 00:40
- 6☉︎ Sun00:40 – 01:19
- 7♀︎ Venus01:19 – 01:59
- 8☿︎ Mercury01:59 – 02:38
- 9☽︎ Moon02:38 – 03:17
- 10♄︎ Saturn03:17 – 03:56
- 11♃︎ Jupiter03:56 – 04:35
- 12♂︎ Mars04:35 – 05:14
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Saturday, 16 May 2026, the Sun rises at 05:16 and sets at 21:24: the day lasts 16h 08m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 05:14, lasts 7h 50m: twelve night hours of 39 min.
Which planet rules the first hour that day?
Saturn, from 05:16 to 06:37: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.