Board Thread:Questions and Answers/@comment-24.102.250.77-20200413025117/@comment-25364614-20200413052705

You're spoiled for choice:
 * Unified Story Timeline - For light novels/manga and anime-only arcs.
 * Anime Timeline - Anime-only version because Railgun Season 1 did its own thing. Also the movie.
 * Story Arcs - List of all story arcs and what light novels, manga chapters and anime episodes cover them.
 * A Certain Unified Calendar - An alternate comprehensive look at all of the story arcs and events plotted on a calendar (Last updated February 2020).