http://blogs.technet.com/jonathanalmquist/archive/2009/03/19/count-alerts-raised-on-specific-date.aspxCount alerts raised on specific date get-alert | where {$_.TimeRaised.ToLocalTime().date -eq " mm/dd/yyyy "} | measure-object main menuen-USCommunityServer 2.1 SP1 (Build: 61025.2)