def another_series_has_identical_start_time(seqinfo, index):
    """
    Check if check if another series has identical start date and
    time.
    If so, they are just the same acquisition and the only difference
    is that one of them would be intensity-normalized or motion-
    corrected, etc.
    """

    if not hasattr(seqinfo[index],'time'):
        return False
    else:
        series_with_identical_start_time = [
            s for s in seqinfo if (
                s.date and s.date==seqinfo[index].date
                and s.time and s.time==seqinfo[index].time
            )
        ]
        return len(series_with_identical_start_time)>1