anchor.diff:  }
   ---------------------------------
   
  -If you don't specify a timezone, UTC is used. This would result in both of these
  +If you don't specify a time zone, UTC is used. This would result in both of these
   documents being placed into the same day bucket, which starts at midnight UTC
   on 1 October 2015:
   
  
positive.code: data requires special support because time-based intervals are not always a
  fixed length.
  
  [[calendar_and_fixed_intervals]]
  ==== Calendar and fixed intervals
  
  
negative.code: ---------------------------------
  // TESTRESPONSE[s/\.\.\./"took": $body.took,"timed_out": false,"_shards": $body._shards,"hits": $body.hits,/]
  
  If you specify a `time_zone` of `-01:00`, midnight in that time zone is one hour
  before midnight UTC:
  
  [source,console]
  