Planetary hours
in Hanoi.
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 Friday, 31 July 2026: day of Venus
- Sunrise
- 05:30
- Sunset
- 18:35
- Next sunrise
- 05:30
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Asia/Bangkok).
Day
- 1♀︎ Venus05:30 – 06:35
- 2☿︎ Mercury06:35 – 07:41
- 3☽︎ Moon07:41 – 08:46
- 4♄︎ Saturn08:46 – 09:51
- 5♃︎ Jupiter09:51 – 10:57
- 6♂︎ Mars10:57 – 12:02
- 7☉︎ Sun12:02 – 13:08
- 8♀︎ Venus13:08 – 14:13
- 9☿︎ Mercury14:13 – 15:19
- 10☽︎ Moon15:19 – 16:24
- 11♄︎ Saturn16:24 – 17:30
- 12♃︎ Jupiter17:30 – 18:35
Night
- 1♂︎ Mars18:35 – 19:30
- 2☉︎ Sun19:30 – 20:24
- 3♀︎ Venus20:24 – 21:19
- 4☿︎ Mercury21:19 – 22:14
- 5☽︎ Moon22:14 – 23:08
- 6♄︎ Saturn23:08 – 00:03
- 7♃︎ Jupiter00:03 – 00:57
- 8♂︎ Mars00:57 – 01:52
- 9☉︎ Sun01:52 – 02:46
- 10♀︎ Venus02:46 – 03:41
- 11☿︎ Mercury03:41 – 04:35
- 12☽︎ Moon04:35 – 05:30
Other cities · Vietnam
Questions
How are the planetary hours calculated in Hanoi?
On Friday, 31 July 2026, the Sun rises at 05:30 and sets at 18:35: the day lasts 13h 06m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:30, lasts 10h 55m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Venus, from 05:30 to 06:35: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.