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In October 1993, "Tautog" was sent on an emergent WESTPAC with four days notice. The ship and crew participated in a joint exercise with the Japanese Maritime Self Defense Force, then enjoyed a liberty port in Hong Kong. On 3 October, ET2(SS) Pitcher lost a year of his age when the Tautog sailed across the International Date Line shortly after midnight. This incident is known as: The Great October International Date Line Demarcation Incident.