USS PT-495 was a motor torpedo boat of the United States Navy, a PT: a small, fast craft built to attack with torpedoes.
On the night of 24–25 October 1944 she was on patrol in Surigao Strait. She was one of thirty-nine motor torpedo boats out on that patrol.
The patrol is her part in the Battle of Surigao Strait. The battle is dated 25 October 1944, and she was there with the motor torpedo boats.
The patrol is given as the night that joins 24 October to 25 October. The battle date falls on the second of those days, so her night in the strait and the battle are the same stretch of duty.
What is set down for PT-495 is that duty. She was one of the motor torpedo boats on patrol in Surigao Strait on the night of 24–25 October 1944, among the thirty-nine, in the Battle of Surigao Strait.