timefmt
timefmt OPTIONS TIME_STRING_TO_CONVERT
timefmt formats the current date or INPUT_DATE based on the output format provided in options. The default input and output format is RFC3339. Formats are specified based on Golang’s time package including the common constants (e.g. RFC822, RFC1123).
For details see https://golang.org/pkg/time/#Time.Format.
One additional time layout provided by timefmt
Format the date July, 7, 2016 in YYYY-MM-DD format
timefmt -if "2006-01-02" -of "01/02/2006" "2017-12-02"
Yields “12/02/2017”
Format the MySQL date/time of 8:08am, July 2, 2016
timefmt -input-format mysql -output-format RFC822 "2017-12-02 08:08:08"
Yields “02 Dec 17 08:08 UTC”
timefmt 1.2.10