The last update introduced a warning to alert you if time-synchronization related problems between Home Assistant and the app/browser are causing the card to show the incorrect time, since these are often difficult to spot.
However, these problems are harder to fix in practice than I anticipated. This release adds a new option to give the card some semblance of competency when facing out-of-sync clocks:
sync_issues: fix - the card estimates Home Assistant's time rather than using the app's time
sync_issues: ignore - disables the warning
The documentation has also been updated to give more detail on these problems.