from datetime import datetime


def get_playlists_spotify_dates(playlist_dates, latest_only=False):
    response = {}

    if playlist_dates:
        delphi_dsp_sync_date_time = playlist_dates[0]["dsp_sync_date_time"] or []

        dates = [datetime.fromisoformat(d[:19]) for d in delphi_dsp_sync_date_time if d is not None]
        dates.sort(reverse=True)
        if dates and latest_only:
            dates = (dates[0],)
        for value in dates:
            response[value.date().isoformat()] = value.strftime(format="%Y-%m-%dT%XZ")

    return response