Tehran
Exact time synced with atomic clocks (IANA + NTP)
Monday, June 29, 2026
Iran Β· Asia/Tehran Β· GMT+3:30
Tehran and Hong Kong Time Difference
Tehran is 4.5h behind Hong Kong
Hong Kong
Exact time synced with atomic clocks (IANA + NTP)
Monday, June 29, 2026
Hong Kong SAR China Β· Asia/Hong_Kong Β· GMT+8
Best time for work calls
If you are scheduling a call between Tehran and Hong Kong, the overlap window is limited to typical business hours. When it is 9 am in Tehran it is 1 pm in Hong Kong β a workable window for scheduling. The latest reasonable overlap is around 12 pm in Tehran (5 pm in Hong Kong). Outside this window there is effectively no good overlap for regular office hours.
Best time for family calls
Scheduling a family call between Tehran and Hong Kong takes a little planning. Tehran is 4.5 hours behind Hong Kong, which means there's no window that feels comfortable for everyone at the same time. The most manageable option is early evening in Tehran β around 7 pm β which puts Hong Kong at 11:30 pm. Someone will need to stretch a little, but at least no one's setting a middle-of-the-night alarm. Weekends tend to give the most flexibility if you can agree on a time in advance.
Tehran
No public holidays on record for this country
Daylight Cycle
π
Dawn4:22:23 AM
βοΈ Sunrise4:52:24 AM
π Solar Noon12:08:59 PM
π Golden Hour6:47:47 PM
π Sunset7:25:35 PM
π Dusk7:55:36 PM
Day length14:33:10
Data via sunrisesunset.io
Current Weather
Conditionβ
Temperatureβ
Feels likeβ
Humidityβ
Windβ
Data via Open-Meteo Β· Updates every 30 min
Moon Phase
Phaseπ Full Moon
Illumination99%
CycleWaxing
Moon age13.9 days
Moonrise19:19
Moonset03:51
Hong Kong
Hong Kong Special Administrative Region Establishment Day
Jul 1in 3dDay following the Mid-Autumn Festival
Sep 26in 90dNational Day
Oct 1in 95d
Daylight Cycle
π
Dawn5:18:09 AM
βοΈ Sunrise5:43:12 AM
π Solar Noon12:27:50 PM
π Golden Hour6:40:05 PM
π Sunset7:12:28 PM
π Dusk7:37:31 PM
Day length13:29:15
Data via sunrisesunset.io
Current Weather
Conditionβ
Temperatureβ
Feels likeβ
Humidityβ
Windβ
Data via Open-Meteo Β· Updates every 30 min
Moon Phase
Phaseπ Full Moon
Illumination99%
CycleWaxing
Moon age13.9 days
Moonrise18:50
Moonset05:34