Input utc Binary timestamp to be converted to tm structure components. Output timetm Time component of the binary timestamp. tns Nanoseconds since time component of the binary timestamp. inacctm Seconds of inaccuracy component of the binary timestamp. If the inaccuracy is finite, then tm_mday returns a value of -1 and tm_ mon and tm_year return values of zero. The field tm_yday contains the inaccuracy in days. If the inaccuracy is infinite, all tm structure fields return values of -1. ins Nanoseconds of inaccuracy component of the binary timestamp. If the inaccuracy is infinite, ins returns a value of -1.