You can use the stat command to view dates and times associated with Linux files, and the date command can do some handy conversions if you’d like to display the current time in the epoch format.

While the average Unix user is generally satisfied by the date/time stamps that he sees when using the ls -l command, it is sometimes useful to remember that there are actually several time stamps ...

The link What Every Programmer Should Know about Time was recently posted on DZone and was a highly popular link. It references the original Emil Mikulic post Time and What Programmers Should Know ...