SECONDSTODATE - converts a time in seconds into a string.

SecondsToDate ([I,S]) returns S

is the reverse of DateToSeconds. The function converts the time (in seconds) into a human-readable date and time-of-day string. If the second argument is present, it is interpreted as a .TFMT format string, specifying a format for the date/string; see "expl b lib .tfmt" for information on such strings. If both arguments are omitted, the function returns the current date and time.