Planetary hours
in Jurong West.
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 Monday, 21 December 2026: day of the Moon
- Sunrise
- 07:01
- Sunset
- 19:04
- Next sunrise
- 07:02
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Asia/Singapore).
Day
- 1☽︎ Moon07:01 – 08:01
- 2♄︎ Saturn08:01 – 09:02
- 3♃︎ Jupiter09:02 – 10:02
- 4♂︎ Mars10:02 – 11:02
- 5☉︎ Sun11:02 – 12:02
- 6♀︎ Venus12:02 – 13:03
- 7☿︎ Mercury13:03 – 14:03
- 8☽︎ Moon14:03 – 15:03
- 9♄︎ Saturn15:03 – 16:03
- 10♃︎ Jupiter16:03 – 17:03
- 11♂︎ Mars17:03 – 18:04
- 12☉︎ Sun18:04 – 19:04
Night
- 1♀︎ Venus19:04 – 20:04
- 2☿︎ Mercury20:04 – 21:04
- 3☽︎ Moon21:04 – 22:03
- 4♄︎ Saturn22:03 – 23:03
- 5♃︎ Jupiter23:03 – 00:03
- 6♂︎ Mars00:03 – 01:03
- 7☉︎ Sun01:03 – 02:03
- 8♀︎ Venus02:03 – 03:02
- 9☿︎ Mercury03:02 – 04:02
- 10☽︎ Moon04:02 – 05:02
- 11♄︎ Saturn05:02 – 06:02
- 12♃︎ Jupiter06:02 – 07:02
Other cities · Singapore
Questions
How are the planetary hours calculated in Jurong West?
On Monday, 21 December 2026, the Sun rises at 07:01 and sets at 19:04: the day lasts 12h 03m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 07:02, lasts 11h 58m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
The Moon, from 07:01 to 08:01: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.