Don't use isoformat() globally

@@ -26,7 +26,7 @@ ${question_id}   0
   [Arguments]  @{ARGUMENTS}
   [Documentation]  Відкрити брaвзер, створити обєкт api wrapper, тощо
   ${api_wrapper}=  prepare_api_wrapper  ${USERS.users['${ARGUMENTS[0]}'].api_key}  ${API_HOST_URL}    ${api_version}
-  ${creation_date} =   get_now
+  ${creation_date} =   get_date
   Set To Dictionary  ${USERS.users['${ARGUMENTS[0]}']}   creation_date   ${creation_date}
   Set To Dictionary  ${USERS.users['${ARGUMENTS[0]}']}   client  ${api_wrapper}
   Log Variables

@@ -24,7 +24,10 @@ from .initial_data import (
 TZ = timezone(os.environ['TZ'] if 'TZ' in os.environ else 'Europe/Kiev')
 
 def get_now():
-    return datetime.now(TZ).isoformat()
+    return datetime.now(TZ)
+
+def get_date():
+	return get_now().isoformat()
 
 def get_file_contents(path):
     with open(path, 'r') as f: