If you checked "Launch DNS Testing for.RU and.SU TLDs" when you formed your order, DNS-server standard testing procedure will be launched. In this case delegation procedure will take from 6 hours to several days subject to testing results. Upon successful testing completion, data about a new DNS servers list for the domain will be submitted to zone root servers and Whois-service. Whois-service data are updated every 15 minutes.
With "Launch DNS Testing for.RU and .SU TLDs" unchecked during order forming, the domain will be delegated upon data update in the top level zone. RU zone is updated every even hour. SU and РФ zones are updated every hour. Zones update may take up to 30 minutes. In this case domain delegation procedure will take from several minutes up to 6 hours subject to data update time in the top level zone.