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, 18 May 2025: day of the Sun
- Sunrise
- 05:12
- Sunset
- 21:28
- Next sunrise
- 05:11
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/London).
Day
- 1☉︎ Sun05:12 – 06:34
- 2♀︎ Venus06:34 – 07:55
- 3☿︎ Mercury07:55 – 09:16
- 4☽︎ Moon09:16 – 10:38
- 5♄︎ Saturn10:38 – 11:59
- 6♃︎ Jupiter11:59 – 13:20
- 7♂︎ Mars13:20 – 14:42
- 8☉︎ Sun14:42 – 16:03
- 9♀︎ Venus16:03 – 17:24
- 10☿︎ Mercury17:24 – 18:46
- 11☽︎ Moon18:46 – 20:07
- 12♄︎ Saturn20:07 – 21:28
Night
- 1♃︎ Jupiter21:28 – 22:07
- 2♂︎ Mars22:07 – 22:45
- 3☉︎ Sun22:45 – 23:24
- 4♀︎ Venus23:24 – 00:02
- 5☿︎ Mercury00:02 – 00:41
- 6☽︎ Moon00:41 – 01:19
- 7♄︎ Saturn01:19 – 01:58
- 8♃︎ Jupiter01:58 – 02:37
- 9♂︎ Mars02:37 – 03:15
- 10☉︎ Sun03:15 – 03:54
- 11♀︎ Venus03:54 – 04:32
- 12☿︎ Mercury04:32 – 05:11
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Sunday, 18 May 2025, the Sun rises at 05:12 and sets at 21:28: the day lasts 16h 16m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 05:11, lasts 7h 43m: twelve night hours of 39 min.
Which planet rules the first hour that day?
The Sun, from 05:12 to 06:34: 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.