This directory contains tooling to help when debugging time zone issues on Android. dump-tzdata.py - A tool that takes a tzdata file and splits it into component tzfiles, zone.tab, etc. Run it with --help for usage. The individual tzfiles can be inspected with tools like zdump, for example with "zdump -V <tzfile>" It also dumps human-readable CSV files of the (v1) content currently used by Android's ZoneInfo class. These can be inspected and compared with dumps from other tzdata files easily using your favourite text diffing tool.