also use tz in in as.Date() on POSIXt (closes #49)

[eddelbuettel]

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[codecov-io]

Codecov Report

Merging #50 into master will not change coverage.

@@          Coverage Diff          @@
##           master    #50   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           4      4           
  Lines         187    187           
=====================================
  Hits          187    187

Impacted Files	Coverage Δ
R/anytime.R	100% <100%> (ø)	✅

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