diff --git a/data/README.md b/data/README.md
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--- a/data/README.md
+++ b/data/README.md
@@ -60,6 +60,7 @@
 | datapage_v2_empty_datapage.snappy.parquet | A compressed FLOAT column with DataPageV2, a single row, value is null, the file uses Snappy compression, but there is no data for uncompression (see [related issue](https://github.com/apache/arrow-rs/issues/7388)). The zero bytes must not be attempted to be uncompressed, as this is an invalid Snappy stream. |
 | unknown-logical-type.parquet | A file containing a column annotated with a LogicalType whose identifier has been set to an abitrary high value to check the behaviour of an old reader reading a file written by a new writer containing an unsupported type (see [related issue](https://github.com/apache/arrow/issues/41764)). |
 | int96_from_spark.parquet | Single column of (deprecated) int96 values that originated as Apache Spark microsecond-resolution timestamps. Some values are outside the range typically representable by 64-bit nanosecond-resolution timestamps. See [int96_from_spark.md](int96_from_spark.md) for details. |
+| duration.parquet | Single column of duration values that generated by polars. See [related issue](https://github.com/apache/arrow-rs/issues/5625) for details. |
 
 TODO: Document what each file is in the table above.
 
diff --git a/data/duration.parquet b/data/duration.parquet
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Binary files /dev/null and b/data/duration.parquet differ