Import data with DataGrab using xml file

My Client is using Low Events and DataGrab add-on. He want to input data with DataGrab to channel, but there is problem with field from Low Events. DataGrab is using only one field for import, and Low Events 4 fields (date start, time start, time end, date end). Can I use one string in DataGrab to import complete dates and times for Low Events? If yes what format it will be? Or I must write my own import script?

Low Event Field ( 4 fields )
DataGrab Field ( 1 field )
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