About RFC 2822 date and time
RFC 2822 is a date and time notation format defined in RFC 2822 (Internet Message Format).
RFC 2822 is used as the date and time notation in email headers.
For example, converting January 23, 2000 1:23:45.678 (JST) to RFC 2822 results in the following:
Sun, 23 Jan 2000 01:23:45 JST