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 Sunday, 17 January 2027: day of the Sun
- Sunrise
- 07:13
- Sunset
- 19:16
- Next sunrise
- 07:13
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Asia/Singapore).
Day
- 1☉︎ Sun07:13 – 08:13
- 2♀︎ Venus08:13 – 09:13
- 3☿︎ Mercury09:13 – 10:14
- 4☽︎ Moon10:14 – 11:14
- 5♄︎ Saturn11:14 – 12:14
- 6♃︎ Jupiter12:14 – 13:15
- 7♂︎ Mars13:15 – 14:15
- 8☉︎ Sun14:15 – 15:15
- 9♀︎ Venus15:15 – 16:15
- 10☿︎ Mercury16:15 – 17:16
- 11☽︎ Moon17:16 – 18:16
- 12♄︎ Saturn18:16 – 19:16
Night
- 1♃︎ Jupiter19:16 – 20:16
- 2♂︎ Mars20:16 – 21:16
- 3☉︎ Sun21:16 – 22:15
- 4♀︎ Venus22:15 – 23:15
- 5☿︎ Mercury23:15 – 00:15
- 6☽︎ Moon00:15 – 01:15
- 7♄︎ Saturn01:15 – 02:14
- 8♃︎ Jupiter02:14 – 03:14
- 9♂︎ Mars03:14 – 04:14
- 10☉︎ Sun04:14 – 05:14
- 11♀︎ Venus05:14 – 06:13
- 12☿︎ Mercury06:13 – 07:13
Other cities · Singapore
Questions
How are the planetary hours calculated in Jurong West?
On Sunday, 17 January 2027, the Sun rises at 07:13 and sets at 19:16: the day lasts 12h 03m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 07:13, lasts 11h 57m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
The Sun, from 07:13 to 08:13: 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.