We given date as datatype for date column.
We are getting date in below format,
kindly find screenshot for the same, below are the sample code we written for updating into schema.
xtk.session.Write('<tempTable _operation="insert" member_start_dt_curr=" '+MEMBER_START_DT_CURR+' " xtkschema="apl:tempTable"/>');
Try converting the MEMBER_START_DT_CURR to "2017-05-13 00:00:00.000Z" and see if it helps.