How to call Hanoi in Vietnam from Tonga:
00 - Exit code when making an international call from Tonga
84 - Vietnamese country code for inbound calls
4 - Hanoi city code
00 + 84 + 4 + Local Number - International dialing code format
World time zone information:
The time in Tonga is now 05:15:43 AM (05:15:43 AM)
The time in Hanoi Vietnam is now 23:15:43 PM (11:15:43 PM)
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