@@ -11,6 +11,8 @@
    Tuple,
)

from ikvpy.client import IKVReader, IKVWriter
from ikvpy.clientoptions import ClientOptions, ClientOptionsBuilder
from ikvpy.document import IKVDocument, IKVDocumentBuilder
@@ -162,7 +164,9 @@ def _decode_fields_for_primary_key(
        dt: Optional[datetime] = None
        dt_bytes = next(value_iter)
        if dt_bytes:
-            dt = datetime.fromisoformat(str(dt_bytes, "utf-8"))

        # decode other features
        features = {}
@@ -252,12 +256,17 @@ def _create_document(
        """Converts feast key-value pairs into an IKV document."""

        # initialie builder by inserting primary key and row creation timestamp
-        event_timestamp_str: str = utils.make_tzaware(event_timestamp).isoformat()
        builder = (
            IKVDocumentBuilder()
            .put_string_field(PRIMARY_KEY_FIELD_NAME, entity_id)
            .put_bytes_field(
-                EVENT_CREATION_TIMESTAMP_FIELD_NAME, event_timestamp_str.encode("utf-8")
            )
        )