var query =(from x in db.YourTable orderby Math.Abs(System.Data.Linq.SqlClient.SqlMethods.DateDiffMillisecond(x.time,DateTime.Now)) select x).FirstOrDefault();
var query =(from x in db.YourTable orderby Math.Abs(System.Data.Linq.SqlClient.SqlMethods.DateDiffMillisecond(x.time,DateTime.Now)) descending select x).FirstOrDefault();
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