Planetary hours
in Biên Hòa.
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, 13 July 2026: day of the Moon
- Sunrise
- 05:36
- Sunset
- 18:19
- Next sunrise
- 05:37
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Asia/Ho_Chi_Minh).
Day
- 1☽︎ Moon05:36 – 06:40
- 2♄︎ Saturn06:40 – 07:44
- 3♃︎ Jupiter07:44 – 08:47
- 4♂︎ Mars08:47 – 09:51
- 5☉︎ Sun09:51 – 10:54
- 6♀︎ Venus10:54 – 11:58
- 7☿︎ Mercury11:58 – 13:02
- 8☽︎ Moon13:02 – 14:05
- 9♄︎ Saturn14:05 – 15:09
- 10♃︎ Jupiter15:09 – 16:12
- 11♂︎ Mars16:12 – 17:16
- 12☉︎ Sun17:16 – 18:19
Night
- 1♀︎ Venus18:19 – 19:16
- 2☿︎ Mercury19:16 – 20:12
- 3☽︎ Moon20:12 – 21:09
- 4♄︎ Saturn21:09 – 22:05
- 5♃︎ Jupiter22:05 – 23:02
- 6♂︎ Mars23:02 – 23:58
- 7☉︎ Sun23:58 – 00:55
- 8♀︎ Venus00:55 – 01:51
- 9☿︎ Mercury01:51 – 02:47
- 10☽︎ Moon02:47 – 03:44
- 11♄︎ Saturn03:44 – 04:40
- 12♃︎ Jupiter04:40 – 05:37
Other cities · Vietnam
Questions
How are the planetary hours calculated in Biên Hòa?
On Monday, 13 July 2026, the Sun rises at 05:36 and sets at 18:19: the day lasts 12h 43m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 05:37, lasts 11h 17m: twelve night hours of 56 min.
Which planet rules the first hour that day?
The Moon, from 05:36 to 06:40: 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.