diff --git a/src/server/qgsserverapiutils.cpp b/src/server/qgsserverapiutils.cpp
index 308b728d992..932c38f57b8 100644
--- a/src/server/qgsserverapiutils.cpp
+++ b/src/server/qgsserverapiutils.cpp
@@ -383,29 +383,29 @@ QgsExpression QgsServerApiUtils::temporalFilterExpression( const QgsVectorLayer
       const auto fieldRefEnd { refFieldCast( dimension.endFieldName, queryType, fieldType ) };
       const auto fieldEnd = QgsExpression::quotedColumnRef( dimension.endFieldName );
 
-      // Cast the query value according to the field type
-      QString beginQuery;
-      // Drop the time
-      if ( fieldType == QVariant::Type::Date )
-      {
-        beginQuery = interval;
-      }
-      else
-      {
-        beginQuery = interval;
-      }
-
       QString condition;
       QString castedValue;
 
       // field has possibly been downcasted
       if ( ! inputQueryIsDateTime || ! fieldIsDateTime )
       {
-        castedValue = QStringLiteral( "to_date( %1 )" ).arg( QgsExpression::quotedValue( QDate::fromString( interval, Qt::DateFormat::ISODate ) ) );
+        QString castedInterval { interval };
+        // Check if we need to downcast interval from datetime
+        if ( inputQueryIsDateTime )
+        {
+          castedInterval = QDate::fromString( castedInterval, Qt::DateFormat::ISODate ).toString( Qt::DateFormat::ISODate );
+        }
+        castedValue = QStringLiteral( "to_date( %1 )" ).arg( QgsExpression::quotedValue( castedInterval ) );
       }
       else
       {
-        castedValue = QStringLiteral( "to_datetime( %1 )" ).arg( QgsExpression::quotedValue( QDateTime::fromString( interval, Qt::DateFormat::ISODate ) ) );
+        QString castedInterval { interval };
+        // Check if we need to upcast interval to datetime
+        if ( ! inputQueryIsDateTime )
+        {
+          castedInterval = QDateTime::fromString( castedInterval, Qt::DateFormat::ISODate ).toString( Qt::DateFormat::ISODate );
+        }
+        castedValue = QStringLiteral( "to_datetime( %1 )" ).arg( QgsExpression::quotedValue( castedInterval ) );
       }
 
       if ( ! fieldRefEnd.isEmpty() )
diff --git a/tests/src/python/test_qgsserver_api.py b/tests/src/python/test_qgsserver_api.py
index bd026334430..847772a3ae3 100644
--- a/tests/src/python/test_qgsserver_api.py
+++ b/tests/src/python/test_qgsserver_api.py
@@ -203,6 +203,13 @@ class QgsServerAPITestBase(QgsServerTestBase):
                 j['timeStamp'] = '2019-07-05T12:27:07Z'
             except:
                 pass
+            # Fix coordinate precision differences in Travis
+            try:
+                bbox = j['extent']['spatial']['bbox'][0]
+                bbox = [round(c, 4) for c in bbox]
+                j['extent']['spatial']['bbox'][0] = bbox
+            except:
+                pass
             json_content = json.dumps(j)
             headers_content = '\n'.join(reference_content[:reference_content.index('') + 1])
             return headers_content + '\n' + json_content
@@ -672,12 +679,7 @@ class QgsServerAPITest(QgsServerAPITestBase):
         self.assertEqualBrackets(_interval(updated_path, '2017-01-01/..'), '( "updated" IS NULL OR to_date( "updated" ) >= to_date( \'2017-01-01\' ) )')
         self.assertEqualBrackets(_interval(updated_path, '2017-01-01/2018-01-01'), '( "updated" IS NULL OR ( to_date( \'2017-01-01\' ) <= to_date( "updated" ) AND to_date( "updated" ) <= to_date( \'2018-01-01\' ) ) )')
 
-        # For some obscure reason local testing adds milliseconds while it does not happen on Travis, we accept boths here
-        try:
-            self.assertEqualBrackets(_interval(updated_path, '2017-01-01T01:01:01'), '( "updated" IS NULL OR "updated" = to_datetime( \'2017-01-01T01:01:01\' ) )')
-        except:
-            self.assertEqualBrackets(_interval(updated_path, '2017-01-01T01:01:01'), '( "updated" IS NULL OR "updated" = to_datetime( \'2017-01-01T01:01:01.000\' ) )')
-
+        self.assertEqualBrackets(_interval(updated_path, '2017-01-01T01:01:01'), '( "updated" IS NULL OR "updated" = to_datetime( \'2017-01-01T01:01:01\' ) )')
         self.assertEqualBrackets(_interval(updated_path, '../2017-01-01T01:01:01'), '( "updated" IS NULL OR "updated" <= to_datetime( \'2017-01-01T01:01:01\' ) )')
         self.assertEqualBrackets(_interval(updated_path, '/2017-01-01T01:01:01'), '( "updated" IS NULL OR "updated" <= to_datetime( \'2017-01-01T01:01:01\' ) )')
         self.assertEqualBrackets(_interval(updated_path, '2017-01-01T01:01:01/'), '( "updated" IS NULL OR "updated" >= to_datetime( \'2017-01-01T01:01:01\' ) )')
@@ -707,7 +709,7 @@ class QgsServerAPITest(QgsServerAPITestBase):
         self.assertEqualBrackets(_interval(updated_string_path, '2017-01-01/..'), '( "updated_string" IS NULL OR to_date( "updated_string" ) >= to_date( \'2017-01-01\' ) )')
         self.assertEqualBrackets(_interval(updated_string_path, '2017-01-01/2018-01-01'), '( "updated_string" IS NULL OR ( to_date( \'2017-01-01\' ) <= to_date( "updated_string" ) AND to_date( "updated_string" ) <= to_date( \'2018-01-01\' ) ) )')
 
-        self.assertEqualBrackets(_interval(updated_string_path, '2017-01-01T01:01:01'), '( "updated_string" IS NULL OR to_datetime( "updated_string" ) = to_datetime( \'2017-01-01T01:01:01.000\' ) )')
+        self.assertEqualBrackets(_interval(updated_string_path, '2017-01-01T01:01:01'), '( "updated_string" IS NULL OR to_datetime( "updated_string" ) = to_datetime( \'2017-01-01T01:01:01\' ) )')
         self.assertEqualBrackets(_interval(updated_string_path, '../2017-01-01T01:01:01'), '( "updated_string" IS NULL OR to_datetime( "updated_string" ) <= to_datetime( \'2017-01-01T01:01:01\' ) )')
         self.assertEqualBrackets(_interval(updated_string_path, '/2017-01-01T01:01:01'), '( "updated_string" IS NULL OR to_datetime( "updated_string" ) <= to_datetime( \'2017-01-01T01:01:01\' ) )')
         self.assertEqualBrackets(_interval(updated_string_path, '2017-01-01T01:01:01/'), '( "updated_string" IS NULL OR to_datetime( "updated_string" ) >= to_datetime( \'2017-01-01T01:01:01\' ) )')