http://www.perlmonks.org?node_id=249831


in reply to 2038 bug

We had problems with the 2038 bug several years ago (try to find the 67th birthday of someone aged approx 18, that will fail long before 2038 - in 1970-something), just as we had all Y2K stuff weeded out long before 1999.
The best solution is to go with a module that allows much greater range of dates than the 1970 to 2038 range that time_t allows with 32 bits.
We changed to Date::Calc (and used the C-library for all C and C++ programs) so we wont have problems before sometime around year 2380(-70 or so years) when our RDBMS's date type goes out of range!