A function 'PLACEHOLDER' has been used in a True/False expression that is used as a table filter exp

This worked:

Overtime hours between = 
VAR StartHour = SELECTEDVALUE(DistinctStartingHour[Start of Hour])
VAR EndHour = SELECTEDVALUE(DistinctEndHour[End Of Hour])
RETURN
IF([StartHour] > [EndHour] ,
--calculate overtime that crosses midnight
CALCULATE([Overtime hours],
FILTER(fact_TimeCardData,fact_TimeCardData[STARTTIME] >= StartHour && fact_TimeCardData[EndTimeAdjusted] <= TIME(23,59,0))
)
+
CALCULATE([Overtime hours],
FILTER(fact_TimeCardData,fact_TimeCardData[STARTTIME] >= TIME(0,0,0) && fact_TimeCardData[EndTimeAdjusted] <= [EndHour])
)
+
CALCULATE([Overtime hours],
FILTER(fact_TimeCardData,(fact_TimeCardData[STARTTIME] >= StartHour && fact_TimeCardData[EndTimeAdjusted] <= EndHour))
)
,
--calculate overtime that does not cross midnight
CALCULATE([Overtime hours],
FILTER(fact_TimeCardData,fact_TimeCardData[STARTTIME] >= StartHour && fact_TimeCardData[EndTimeAdjusted] <= EndHour)
)
)