This library is deprecated! I recommend not using it in new projects and use other Common Lisp date/time libraries instead.
net-telent-date is a date and time parsing and formatting library originally written by Jim Healy for CMUCL. It was later packaged and maintained under its current name by Daniel Barlow and Kevin Rosenberg.
It contains routines for printing and parsing RFC822, RFC2822 and HTTP time strings primarily, but can be used to parse other time formats as well.
In this repository bugs related to parsing time zones were fixed, a big table of recognized time zone identifiers was added and the code base was tidied up. The current version is 0.43.