def label_from_instance(self, obj):
        from django.utils import timezone

        current_tz = timezone.get_current_timezone()
        date = obj.start_time.astimezone(current_tz).strftime('%A, %b %d')
        time = obj.start_time.astimezone(current_tz).strftime(
            '%I:%M%p').lstrip('0').lower()

        if obj.venue is not None:
            return "%s %s at %s" % (date, time, obj.venue)
        return "%s %s" % (date, time)