From d997e9be08b2d8483134f01c60b1fdd7b99d69c6 Mon Sep 17 00:00:00 2001
From: Jessy Barrette <30420025+JessyBarrette@users.noreply.github.com>
Date: Tue, 15 Aug 2023 10:14:34 -0400
Subject: [PATCH] fix utils.convert_datetime_str when None

---
 ocean_data_parser/parsers/utils.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ocean_data_parser/parsers/utils.py b/ocean_data_parser/parsers/utils.py
index d911ad56..d9676c01 100644
--- a/ocean_data_parser/parsers/utils.py
+++ b/ocean_data_parser/parsers/utils.py
@@ -214,8 +214,12 @@ def get_spatial_coverage_attributes(
     return ds
 
 
-def convert_datetime_str(time_str, **to_datetime_kwargs):
+def convert_datetime_str(time_str:str, **to_datetime_kwargs) -> pd.Timestamp:
+    """Parse time stamp string  to a pandas Timestamp"""
     date_format = None
+    if time_str is None:
+        return pd.NaT
+    
     if re.fullmatch(r"\d\d\d\d-\d\d-\d\d", time_str):
         date_format = "%Y-%m-%d"
     elif re.fullmatch(r"\d\d-\d\d-\d\d\d\d", time_str):