Planetary hours
in Tehran.
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 Wednesday, 27 May 2026: day of Mercury
- Sunrise
- 04:51
- Sunset
- 19:11
- Next sunrise
- 04:51
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Asia/Tehran).
Day
- 1☿︎ Mercury04:51 – 06:03
- 2☽︎ Moon06:03 – 07:15
- 3♄︎ Saturn07:15 – 08:26
- 4♃︎ Jupiter08:26 – 09:38
- 5♂︎ Mars09:38 – 10:50
- 6☉︎ Sun10:50 – 12:01
- 7♀︎ Venus12:01 – 13:13
- 8☿︎ Mercury13:13 – 14:24
- 9☽︎ Moon14:24 – 15:36
- 10♄︎ Saturn15:36 – 16:48
- 11♃︎ Jupiter16:48 – 17:59
- 12♂︎ Mars17:59 – 19:11
Night
- 1☉︎ Sun19:11 – 19:59
- 2♀︎ Venus19:59 – 20:48
- 3☿︎ Mercury20:48 – 21:36
- 4☽︎ Moon21:36 – 22:24
- 5♄︎ Saturn22:24 – 23:13
- 6♃︎ Jupiter23:13 – 00:01
- 7♂︎ Mars00:01 – 00:49
- 8☉︎ Sun00:49 – 01:38
- 9♀︎ Venus01:38 – 02:26
- 10☿︎ Mercury02:26 – 03:14
- 11☽︎ Moon03:14 – 04:03
- 12♄︎ Saturn04:03 – 04:51
Questions
How are the planetary hours calculated in Tehran?
On Wednesday, 27 May 2026, the Sun rises at 04:51 and sets at 19:11: the day lasts 14h 20m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 04:51, lasts 9h 40m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Mercury, from 04:51 to 06:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.