diff --git a/pyiceberg/io/pyarrow.py b/pyiceberg/io/pyarrow.py
index aa27796081..72001f5b9d 100644
--- a/pyiceberg/io/pyarrow.py
+++ b/pyiceberg/io/pyarrow.py
@@ -1068,8 +1068,17 @@ def primitive(self, primitive: pa.DataType) -> PrimitiveType:
             return StringType()
         elif pa.types.is_date32(primitive):
             return DateType()
-        elif isinstance(primitive, pa.Time64Type) and primitive.unit == "us":
+        elif isinstance(primitive, pa.Time64Type) and (primitive.unit == "us" or primitive.unit == "ns"):
+            primitive = cast(pa.TimestampType, primitive)
+            if primitive.unit == "ns":
+                if self._downcast_ns_timestamp_to_us:
+                    logger.warning("Iceberg does not yet support 'ns' timestamp precision. Downcasting to 'us'.")
+                else:
+                    raise TypeError(
+                        "Iceberg does not yet support 'ns' timestamp precision. Use 'downcast-ns-timestamp-to-us-on-write' configuration property to automatically downcast 'ns' to 'us' on write."
+                    )
             return TimeType()
+        
         elif pa.types.is_timestamp(primitive):
             primitive = cast(pa.TimestampType, primitive)
             if primitive.unit in ("s", "ms", "us"):