I have a chart that I am grouping data by Year, Month, day then Hour (this is to view server performance data) - however i need the label for the hour grouping to be in the format of HH:MM and not H:M by using expression =HOUR(Fields!Timestamp_perfmon.Value) &":"&MINUTE(Fields!Timestamp_perfmon.Value) ...but this as you would kind of expect returns 0-23:0-5 ie 18:1 whereas i need it to return 18:12 or 8:12 PM.. when i change the format code for the x-axis it unfortunatey screws up all my other group by values and labels.. can anyone help?

Hi dems01, What about setting the Label property for the Axis group to the following: =Right("0" & HOUR(Fields!Timestamp_perfmon.Value),2) & ":" & Right("0" & MINUTE(Fields!Timestamp_perfmon.Value),2) I hope this helps. Best regards, Christopher Sorensen