Given following log snippets, their explanation, and nothing else, explain what failure, if any, occurred during build of this package.

  Snippets are in a format of [X] : [Y], where [X] is a log snippet, and [Y] is the explanation.

  Snippets are delimited with '================'.

  Drawing on information from all snippets, provide a concise explanation of the issue and recommend a solution.

  Explanation of the issue, and recommended solution, should take a handful of sentences.

  Snippets:

  [  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Failure ('test-timezone.R:7:5'): with_timezone: changes the time zone ───────
  ... %in% c("PDT", "PST") is not TRUE]: [Testsuite result with failed test output]

Issue: Failed test 
Resolution: This tests works with timezone - verify that the tzdata package is installed, or identify the specific part of the code it is testing