1. This has nothing to do with the time difference. If you do a Dumper against your $response, you will see the Date field includes time-zone info: 
    use Data::Dumper;
...
print Dumper($response);

    [download]
    When you said sleep(10), you didn't set the current_age to 10s, but just added ABOUT 10s on top of it.
  2. Someone between you and the origin server caches this page, not neccessary to be your direct ISP. The interesting result you got, does prove that current_age() serves its purpose very well. The reason HTTP header including this Date field is to record the time the page was generated on the origin server, and it should not be modified by any one in middle, thus can be used to measure a page's freshness.

In reply to Re: $response->current_age() behaving unexpectedly by pg
in thread $response->current_age() behaving unexpectedly by mooseboy

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