For this chain-of-thought reasoning and answer, what was the question?
The relevant sentence in the passage is: In 42 completed seasons, the Capitals have qualified for the Stanley Cup playoffs 27 times, making two Stanley Cup Finals appearances during the 1997 -- 98 and 2017 -- 18 seasons, winning the latter.
A: 2017 -- 18
Q: The Washington Capitals are a professional ice hockey team based in Washington, D.C. The team is a member of the Metropolitan Division of the Eastern Conference of the National Hockey League (NHL). The Capitals played at the Capital Centre from their inaugural season in 1974 to 1997, when they moved to the MCI Center, now known as the Capital One Arena. In 42 completed seasons, the Capitals have qualified for the Stanley Cup playoffs 27 times, making two Stanley Cup Finals appearances during the 1997 -- 98 and 2017 -- 18 seasons, winning the latter.

Based on this passage, when was the last time the capitals made the finals?