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+This directory contains code associated with the "Time Zone Data" app, which is a mechanism
+for updating time zone rules data on device without needing a full OTA: it is delivered via
+OEM-specific signed .apk files.
+
+The code/files beneath this directory are maintained by Android developers and intended to be
+OEM-independent.
+
+See the oem_template directory for files / directory structures that OEMs are expected to copy
+elsewhere and configure.