libdatetime-format-rfc3339-per software package provides module to parse and format RFC3339 datetime strings, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libdatetime-format-rfc3339-per
libdatetime-format-rfc3339-per is installed in your system.
Make ensure the libdatetime-format-rfc3339-per package were installed using the commands given below,
$ sudo dpkg-query -l | grep libdatetime-format-rfc3339-per*
You will get with libdatetime-format-rfc3339-per package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Perl |
| Package | libdatetime-format-rfc3339-per |
| Version | 1.0.5-1 |
| Description | module to parse and format RFC3339 datetime strings |
| Sub Section | Perl |