Github user ueshin commented on a diff in the pull request:
https://github.com/apache/spark/pull/20559#discussion_r167389709
--- Diff: python/pyspark/sql/types.py ---
@@ -1709,6 +1709,15 @@ def _check_dataframe_convert_date(pdf, schema):
return pdf
+def _get_local_timezone():
+ """ Get local timezone from environment vi pytz, or dateutil. """
+ from pyspark.sql.utils import require_minimum_pandas_version
+ require_minimum_pandas_version()
+
+ import os
+ return os.environ.get('TZ', 'dateutil/:')
--- End diff --
Sure, I'll add some comments.
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