diff --git a/OpenSim/Data/PGSQL/PGSQLGroupsData.cs b/OpenSim/Data/PGSQL/PGSQLGroupsData.cs
index 6ef576bccc..f398256863 100755
--- a/OpenSim/Data/PGSQL/PGSQLGroupsData.cs
+++ b/OpenSim/Data/PGSQL/PGSQLGroupsData.cs
@@ -435,7 +435,7 @@ namespace OpenSim.Data.PGSQL
 
             using (NpgsqlCommand cmd = new NpgsqlCommand())
             {
-                cmd.CommandText = String.Format("delete from {0} where \"TMStamp\" < CURRENT_DATE - INTERVAL '2 week'", m_Realm);
+                cmd.CommandText = String.Format("delete from {0} where \"TMStamp\"::abstime::timestamp < now() - INTERVAL '2 week'", m_Realm);
 
                 ExecuteNonQuery(cmd);
             }
@@ -461,7 +461,7 @@ namespace OpenSim.Data.PGSQL
 
             using (NpgsqlCommand cmd = new NpgsqlCommand())
             {
-                cmd.CommandText = String.Format("delete from {0} where \"TMStamp\" < CURRENT_DATE - INTERVAL '2 week'", m_Realm);
+                cmd.CommandText = String.Format("delete from {0} where \"TMStamp\"::abstime::timestamp < now() - INTERVAL '2 week'", m_Realm);
 
                 ExecuteNonQuery(cmd);
             }