Maintenance Works Due to 6.5 Update

omsg, on 30 June 2011 - 12:03 AM, said: (My english not is good)
"World of Tanks game server will be unavailable on June 30th from 7:00 UTC due to 0.6.5 update release"
Standard time of my country PARAGUAY: UTC/GMT -4 hours
¿What is time in my country?.
I wait answer or help.
S!