@nta139 They have silently changed the calendar to fix the “July” issues.
Not “adjusted” or “corrected” or even “updated”, just the usual lack of any communication at all. 
Official calendar now reads:
- 2024-07-22T07:00:00Z→2024-09-02T07:00:00Z: Legends of Kalevala
- 2024-07-30T07:00:00Z→2024-08-04T07:00:00Z: Owl Tower
- 2024-08-01T07:00:00Z→2024-08-05T07:00:00Z: Tremors of Underwild
- 2024-08-02T07:00:00Z→2024-08-07T07:00:00Z: War of the Three Kingdoms
- 2024-08-04T07:00:00Z→2024-08-07T07:00:00Z: Goblin Village
- 2024-08-05T07:00:00Z→2024-08-08T07:00:00Z: Tavern of Legends
- 2024-08-07T07:00:00Z→2024-08-10T07:00:00Z: Contest of Elements
- 2024-08-10T07:00:00Z→2024-08-14T07:00:00Z: Judgement of Dunes
- 2024-08-11T07:00:00Z→2024-08-14T07:00:00Z: Costume Chamber
- 2024-08-14T07:00:00Z→2024-08-19T07:00:00Z: Alliance Quest: Clash of Knights
- 2024-08-15T07:00:00Z→2024-08-18T07:00:00Z: Valhalla Forever
- 2024-08-19T07:00:00Z→2024-08-22T07:00:00Z: Astral Elves
- 2024-08-20T07:00:00Z→2024-08-22T07:00:00Z: Atlantis Rises
- 2024-08-25T07:00:00Z→2024-08-29T07:00:00Z: Challenge Event: Secrets of the Opera
- 2024-08-24T07:00:00Z→2024-08-28T07:00:00Z: Untold Tales
- 2024-08-27T07:00:00Z→2024-09-01T07:00:00Z: Ninja Tower
- 2024-08-29T07:00:00Z→2024-09-01T07:00:00Z: Tremors of Underwild