equivalent DAX in excel 2013

[sadath]

I have a DAX to calculate the operating days considering the store open/close date.
the below is working fine in Excel 2017. but getting error when the file is opened using Excel 2013

OpDaysLY:=FORMAT (
SUMX (
ADDCOLUMNS (
SUMMARIZE (
STORELIST,
STORELIST

,
                STORELIST[HD Start Date],
                STORELIST[End Date],
                "NSt", DATE ( 2017, MONTH ( MIN ( 'calendar'[DATE] ) ), 1 ),
                "NEnd", MAX ( 'calendar'[DATE] )-365
            ),
            "x", IF ( [HD Start Date] > [NEnd], [HD Start Date] - 1, MIN ( [End Date], [NEnd] ) )
                - IF ( [End Date] <= [NSt], [End Date] + 1, MAX ( [NSt], [HD Start Date] ) )
                + 1
        ),
        [x]
    ),
    "#"
)

can anyone suggest equivalent DAX in Excel 2013

 

[sadath]

sorry, please consider this

OpDays18:=FORMAT (
SUMX (
ADDCOLUMNS (
SUMMARIZE (
STORELIST,
STORELIST

,
                STORELIST[HD Start Date],
                STORELIST[End Date],
                "NSt", DATE ( 2018, MONTH ( MIN ( 'calendar'[DATE] ) ), 1 ),
                "NEnd", MAX ( 'calendar'[DATE] )
            ),
            "x", IF ( [HD Start Date] > [NEnd], [HD Start Date] - 1, MIN ( [End Date], [NEnd] ) )
                - IF ( [End Date] <= [NSt], [End Date] + 1, MAX ( [NSt], [HD Start Date] ) )
                + 1
        ),
        [x]
    ),
    "#"
)