Day, hull DE-225, belonged to the Rudderow class of destroyer escorts. Philadelphia Navy Yard laid her down on 15 July 1943 and launched her on 14 October 1943. The Navy commissioned her on 10 June 1944. Her first commanding officer was Commander Kendall E. Read.
Her Pacific duty took her to Hollandia, New Guinea, Morotai, and Sansapor. She was credited with 2 battle stars.
Her commissioned service ended on 16 May 1946. The Navy later expended her as a target.
