Date shown on axis though field is a time

[BuistJF]

I have some dax that produces a calculated column where time is rounded to the nearest 30 minutes - 

Requested Time = MROUND(DSET_TABLE[Requested_Time],"0:30"). The Requested_Time column only contains 'Time' and has a data type of 'Time'. When I add this to a visual it shows the time but preceded with a date which is always the 30th December. This date doesnt exist in the data set and the calculated column has a 'data type' of time with a 'format' of short time (13:30). I have played around with the x-axis including changing from continous to categorigcal which does solve the problem though you then cant view the data in a single chart like below (scroll bar added).

Any ideas on how to solve this issue?

[lbendlin]

sounds more like a datetime data type. Dec 30 1899 is the hard coded start date, equivalent of 0  (based on UTC)

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