- # its output is properly treated as utf8
- return decode_utf8(POSIX::strftime($format, localtime($time)));
+ # its output is properly treated as utf8.
+ # Note that this does not handle utf-8 in the format string.
+ ($strftime_encoding) = POSIX::setlocale(&POSIX::LC_TIME) =~ m#\.([^@]+)#
+ unless defined $strftime_encoding;
+ $strftime_encoding
+ ? Encode::decode($strftime_encoding, POSIX::strftime(@_))
+ : POSIX::strftime(@_);