My experience is similar to the other postings. So, as of today (8/11/2018) the problem remains. The times posted are not for times actually in the game, but are elapsed times from the start of a hand (a game) through to the "continue" button appearance. If you quit a game, go back to home and shut down Solitaire and later come back and start the game again, you will still get the elapsed time from the first time you played that hand. Do they really expect 300,000 players to start an event and not ever have to leave a hand prior to completing the entire event? There should be "pause" and "continue" controls (not the same "continue" as at the end of a hand).
That's my two cents worth.