Fix Geosphere Observation parsing of dates in values -> thanks to @mh…

…uber89 who discovered the bug and delivered a fix

CHANGELOG.rst

@@ -5,6 +5,7 @@ Development
 ***********
 
 - Revise type hints for parameter and station_id
+- Fix Geosphere Observation parsing of dates in values -> thanks to @mhuber89 who discovered the bug and delivered a fix
 
 0.58.1 (26.07.2023)
 *******************

tests/provider/geosphere/observation/test_api.py

@@ -0,0 +1,20 @@
+from datetime import datetime
+
+import pytest
+
+from wetterdienst import Parameter
+from wetterdienst.provider.geosphere.observation import GeosphereObservationRequest, GeosphereObservationResolution
+
+
+@pytest.mark.remote
+def test_geopshere_observation_api():
+    """Test the correct parsing of data, especially the dates -> thanks @mhuber89 for the discovery and fix"""
+    stations_at = GeosphereObservationRequest(
+        parameter=[Parameter.WIND_SPEED],
+        resolution=GeosphereObservationResolution.HOURLY,
+        start_date=datetime(2022, 6, 1),
+        end_date=datetime(2022, 6, 2),
+    )
+    station_at = stations_at.filter_by_station_id("4821")
+    df = station_at.values.all().df
+    assert df.get_column("value").is_not_null().sum() == 25

wetterdienst/provider/geosphere/observation/api.py

@@ -682,9 +682,7 @@ def _collect_station_parameter(self, station_id: str, parameter: Enum, dataset:
         )
 
         return df.with_columns(
-            pl.col(Columns.DATE.value)
-            .str.strptime(pl.Datetime, fmt="%Y-%m-%dT%H:%M+%H:%M")
-            .dt.replace_time_zone("UTC"),
+            pl.col(Columns.DATE.value).str.strptime(pl.Datetime, fmt="%Y-%m-%dT%H:%M+%Z").dt.replace_time_zone("UTC"),
             pl.col(Columns.PARAMETER.value).str.to_lowercase(),
             pl.lit(station_id).alias(Columns.STATION_ID.value),
             pl.lit(None, pl.Float64).alias(Columns.QUALITY.value),