Barclays Center was also the home arena for the NHL's New York Islanders full-time from 2015 to 2018, then part-time from 2018 to 2020 (alternating with Nassau Coliseum in Uniondale). The Islanders had originally played at Nassau Coliseum full-time since their inception until 2015 when their lease at the venue expired and the team moved to Barclays Center. In 2020, the team returned to Nassau Coliseum full-time for one season before moving to the UBS Arena in Elmont, New York in 2021.