How long does the overwatch anniversary event last?

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Tags

1. #overwatch
2. #cosmetics
3. #brawls
4. #event
5. #weeks
6. #three
7. #returns
8. #around
9. #longer
10. #sticking
11. #slated
12. #usually
13. #anniversary
14. #events
15. #previously
16. #roughly
17. #terror
18. #month
19. #halloween