eluded from collecting the arrearage because of her failure to assert her rights in a timely fashion.
On the facts of this case the failure of the trial court specifically to direct that notice of its orders be given the defendant was not fatal to the validity of those orders. The defendant not only had actual knowledge of the order itself, but also complied with the order for approximately three months. Under these circumstances, notice of the entry of the alimony and support orders would have accomplished nothing, and the failure of the court to direct such notice did not affect the validity of the orders. See Smith v. Smith, 151 Conn. 292,197 A.2d 65 (1964). In view of Practice Book, 1963, ^379, making the orders effective upon notice to the defendant, the alimony and support arrearage computation commenced on April 27, 1970.
The defendant’s contention that the plaintiff is barred by laches from collecting the arrearage is also unpersuasive. “Laches consists of two elements. ‘First, there must have been a delay that was inexcusable, and, second, that delay must have prejudiced the defendant.’ Kurzatkowski v. Kurzatkowski, 142 Conn. 680, 685, 116 A.2d 906 (1955); Kievman v. Grevers, 122 Conn. 406, 411, 189 A. 609 (1937); 27 Am. Jur. 2d, Equity § 152. The mere lapse of time does not constitute laches; Finucane v. Hayden, 86 Idaho 199, 206, 384 P.2d 236 (1963); 27 Am. Jur. 2d, Equity § 163; unless it results in prejudice to the defendant; see Leary v. Stylarama of New Haven, Inc., 174 Conn. 217, 219, 384 A.2d 377 (1978); Bianco v. Darien, 157 Conn. 548, 556, 254 A.2d 898 (1969); as where, for example, the defendant is led to change his position with respect