"timegm_modern" is not exported by the Time::Local module

That function wasn't added to Time::Local until version 1.27; Perl 5.8.7 shipped with version 1.11. In all three cases, the best option is to update/install the modules.

<Reveal this spoiler or all in this thread>

In reply to Re^7: date and time difference by haukex
in thread date and time difference by invisiblehand

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