Timeline of the X-Men film series released by 20th Century Fox:
Original timeline:
1962: X-Men: First Class (1)
1979: X-Men Origins: Wolverine (2)
2003: X-Men & X2 (3 & 4)
2006: X-Men: The Last Stand (5)
2013: The Wolverine (6)
2023: X-Men: Days of Future Past (7)
Revised Timeline:
1962: X-Men: First Class (1)
1973: X-Men: Days of Future Past (7)
1983: X-Men: Apocalypse (8)
1992: Dark Phoenix (9)
2016: Deadpool (10)
2018: Deadpool 2 (11)
2023: X-Men: Days of Future Past (epilogue) (7)
2029: Logan (12)
????: The New Mutants (13)