
Heure exacte synchronisée avec des horloges atomiques (IANA + NTP)
Friday, May 15, 2026
Iran · Asia/Tehran · GMT+3:30
Tehran est en retard de 5.5h sur Tokyo

Heure exacte synchronisée avec des horloges atomiques (IANA + NTP)
Friday, May 15, 2026
Iran · Asia/Tehran · GMT+3:30

Heure exacte synchronisée avec des horloges atomiques (IANA + NTP)
Friday, May 15, 2026
Japan · Asia/Tokyo · GMT+9
If you are scheduling a call between Tehran and Tokyo, the overlap window is limited to typical business hours. When it is 9 am in Tehran it is 2 pm in Tokyo — a workable window for scheduling. The latest reasonable overlap is around 11 am in Tehran (5 pm in Tokyo). Outside this window there is effectively no good overlap for regular office hours.
Scheduling a family call between Tehran and Tokyo takes a little planning. Tehran is 5.5 hours behind Tokyo, which means there's no window that feels comfortable for everyone at the same time. The most manageable option is early evening in Tehran — around 7 pm — which puts Tokyo at 12:30 am. 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.
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