Custom Date Period

hi Ejykso 

try like:

Table = 
var _today = today()
VAR _quarterstart = 
DATE(
    YEAR(_today), 
    (QUARTER(_today)-1)*3+1,
    1
)
Return
union (
    addcolumns (
       calendar(date(year(_today), month (_today), 1), _today),
        "type", "mtd",
        "order", 1
    ),
    addcolumns(
        CALENDAR(_quarterstart, _today),
        "type", "qtd",
        "order", 2
    )
)

it worked like:

it would be easier with Time Intelligence Functions.