question: public static Calendar fromUnixTime ( long unixTime , TimeUnit timeUnit ) { Calendar calendar = getCalendarInstance ( ) ; calendar . setTimeZone ( TimeZone . getDefault ( ) ) ; long millis = timeUnit . toMillis ( unixTime ) ; calendar . setTimeInMillis ( millis ) ; return calendar ; }
target:  Converts Unix Time in the given time units into Java Calendar time. Unix Time is a measure of time from the epoch. Therefore is devoid of any timezone information. The current default timezone will be assumed for this function.