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 Sunday, 31 May 2026: day of the Sun
- Sunrise
- 05:14
- Sunset
- 18:33
- Next sunrise
- 05:14
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Asia/Bangkok).
Day
- 1☉︎ Sun05:14 – 06:21
- 2♀︎ Venus06:21 – 07:28
- 3☿︎ Mercury07:28 – 08:34
- 4☽︎ Moon08:34 – 09:41
- 5♄︎ Saturn09:41 – 10:47
- 6♃︎ Jupiter10:47 – 11:54
- 7♂︎ Mars11:54 – 13:00
- 8☉︎ Sun13:00 – 14:07
- 9♀︎ Venus14:07 – 15:14
- 10☿︎ Mercury15:14 – 16:20
- 11☽︎ Moon16:20 – 17:27
- 12♄︎ Saturn17:27 – 18:33
Night
- 1♃︎ Jupiter18:33 – 19:27
- 2♂︎ Mars19:27 – 20:20
- 3☉︎ Sun20:20 – 21:14
- 4♀︎ Venus21:14 – 22:07
- 5☿︎ Mercury22:07 – 23:00
- 6☽︎ Moon23:00 – 23:54
- 7♄︎ Saturn23:54 – 00:47
- 8♃︎ Jupiter00:47 – 01:41
- 9♂︎ Mars01:41 – 02:34
- 10☉︎ Sun02:34 – 03:27
- 11♀︎ Venus03:27 – 04:21
- 12☿︎ Mercury04:21 – 05:14
Other cities · Vietnam
Questions
How are the planetary hours calculated in Hanoi?
On Sunday, 31 May 2026, the Sun rises at 05:14 and sets at 18:33: the day lasts 13h 19m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:14, lasts 10h 41m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Sun, from 05:14 to 06:21: 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.