Scheduling updates in symantec endpoint protection manager

Hi ,

Iam working in an organisation with 300+ branches. The bandwidth utilization goes extremely high on peak hours due to antivrus updation which takes place in those branches. Is ther any way of scheduling the update installation in non-peak hours?
We are using symantec endpoint protection manager 12.1.. and have created 300+ groups for our individual branches.

Thanks,
anish