Craft\Minimee_RemoteAssetModel::getLastTimeModified PHP Method

Return a very old DateTime, since it is too expensive to fetch a remote file's headers

public getLastTimeModified ( ) : craft\DateTime
return	craft\DateTime

    public function getLastTimeModified()
    {
        return DateTime::createFromString(self::TimestampZero);
    }

Minimee_RemoteAssetModel