import datetime


def unix_epoch_time_to_datetime_utc(ts_sec: int) -> datetime.datetime:
    return datetime.datetime.utcfromtimestamp(ts_sec).replace(
        tzinfo=datetime.timezone.utc
    )


def datetime_utc_now() -> datetime.datetime:
    return datetime.datetime.utcnow().replace(tzinfo=datetime.timezone.utc)