https://www.gamespot.com/articles/monster-hunter-worlds-summer-twilight-fest-offers-/1100-6460106/

Capcom announced Monster Hunter: World's Summer Twilight Fest will start July 13. The summer event brings a few new surprises to the action RPG.

Every previous event quest will once again be available to play during Summer Twilight Fest, and a few new exclusive quests will be added too. Bonuses will be available each day for players who log in. You'll want to log in every day too, as Summer Twilight Fest's exclusive bounties will only be available for a limited time.