When did the Lewis and Clark expidition leave St. Lewis and, when did they reach the Pacific Ocean?

See the timeline of the expedition at the link below. According to the timeline, Lewis and Clark made camp at Gabaret Island, just north of St. Louis, on December 11, 1803; established Camp Dubois near Hartford, Illinois on December 13, 1803; departed from Camp Dubois for the Pacific on May 14, 1804, and arrived at the mouth of the Pacific on November 7, 1805.

They left St. Louis on May 14, 1804 and reached the
Pacific on November 8, 1805.