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, 23 August 2026: day of the Sun
- Sunrise
- 05:37
- Sunset
- 18:20
- Next sunrise
- 05:38
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Asia/Bangkok).
Day
- 1☉︎ Sun05:37 – 06:41
- 2♀︎ Venus06:41 – 07:44
- 3☿︎ Mercury07:44 – 08:48
- 4☽︎ Moon08:48 – 09:52
- 5♄︎ Saturn09:52 – 10:55
- 6♃︎ Jupiter10:55 – 11:59
- 7♂︎ Mars11:59 – 13:02
- 8☉︎ Sun13:02 – 14:06
- 9♀︎ Venus14:06 – 15:09
- 10☿︎ Mercury15:09 – 16:13
- 11☽︎ Moon16:13 – 17:17
- 12♄︎ Saturn17:17 – 18:20
Night
- 1♃︎ Jupiter18:20 – 19:17
- 2♂︎ Mars19:17 – 20:13
- 3☉︎ Sun20:13 – 21:09
- 4♀︎ Venus21:09 – 22:06
- 5☿︎ Mercury22:06 – 23:02
- 6☽︎ Moon23:02 – 23:59
- 7♄︎ Saturn23:59 – 00:55
- 8♃︎ Jupiter00:55 – 01:52
- 9♂︎ Mars01:52 – 02:48
- 10☉︎ Sun02:48 – 03:45
- 11♀︎ Venus03:45 – 04:41
- 12☿︎ Mercury04:41 – 05:38
Other cities · Vietnam
Questions
How are the planetary hours calculated in Hanoi?
On Sunday, 23 August 2026, the Sun rises at 05:37 and sets at 18:20: the day lasts 12h 43m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 05:38, lasts 11h 17m: twelve night hours of 56 min.
Which planet rules the first hour that day?
The Sun, from 05:37 to 06:41: 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.