from datetime import datetime, timezone
timestamp_str = str(datetime.now(timezone.utc))
print(timestamp_str, type(timestamp_str)) # 2022-05-06 11:23:00.718012+00:00 <class 'str'>
timestamp = datetime.fromisoformat(timestamp_str) # Python 3.7+:
print(timestamp, type(timestamp)) # 2022-05-06 11:23:00.718012+00:00 <class 'datetime.datetime'>
timestamp = datetime.strptime(timestamp_str, '%Y-%m-%d %H:%M:%S.%f%z')
print(timestamp, type(timestamp)) # 2022-05-06 11:23:00.718012+00:00 <class 'datetime.datetime'>