Hi Rob

that's the trouble with this method. Because it is treating dates as values in the value axis, it cannot used date types which are only available for the category axis. The best you can do is use weeks or some other period with a fixed number of days. For example 30.4167 will give you 12 even "months" a year, which may suit if your display does not have to be 100% accurate, but for example the axis label "April" will occur on 2 April not 1 April