Star Trek Day is an annual informal commemorative day on April 5, referencing the fictional future date of April 5, 2063 and its events as depicted in the 1996 film Star Trek: First Contact. The day is celebrated by fans across the world to acknowledge the cultural impact of the Star Trek franchise.^[1][2] It has been compared to May 4th, which is Star Wars Day.^[3][4]

Star Trek, created by Gene Roddenberry, debuted on the NBC TV network in 1966.^[5] The series presented an optimistic future where diversity and exploration were emphasized. It was canceled after three seasons but later achieved a cult following that spurred numerous sequels and cinematic releases^[6][7].The recognition of Star Trek Day began in 2020.^[2][8]

Activities typically include screenings, interviews,^[7] thematic events, and the release of franchise-related content.^{[9][4][10][11]} It has also included collaborations with global nonprofit organizations that resonate with the franchise's foundational values, such as education, social change, and inclusion.^[12][8][13] These partnerships aim to promote a positive outlook on the future, reflecting the series' aspirational messages as well as encouraging fans to envision their influence on future developments.^[14][15][16]

Paramount+, which holds rights to the Star Trek franchise, often supports the day with access to selected episodes.^{[17][18][19][20]} and organizes fan-engagement events.^[21][2]