How long does it take for my domain to resolve properly (to start working)?
New Register.COM, .NET, .ORG, .BIZ, .INFO, .NAME, .US:This can be as quick as 5 minutes. The state between 24-48 hours for a domain to FULLY propagate.
*.HK:It usually takes about 24 hours to register a domain name - however it can take between 3 and 14 days to register a .hk domain name. This is because the procedure for registering a .hk domain name is much more complicated than for registering a .com domain.
Domain Transfer (DNS change settings)
It takes 24 to 72 hours for the nameserver changes to take effect.
*** The above information is for reference only, Please seek independent technical advice if found necessary.