utils.md
In clock: Date-Time Types and Tools

POSIXt time zones are standardized as expected

Code
  posixt_tzone_standardize(character())
Condition
  Warning in `posixt_tzone_standardize()`:
  POSIXt input had a corrupt time zone attribute of `character(0)`. Defaulting to the current zone by assuming the zone is `""`.
Output
  [1] ""

Code
  posixt_tzone_standardize(1)
Condition
  Error in `posixt_tzone_standardize()`:
  ! A POSIXt time zone should either be a character vector or `NULL`.