I could be wrong, but isn’t the cooldown for Ducklett fishing
supposed to return back to the original 15 minutes after reset? The
cooldown for Wingull Gulf resets at reset so I'm assuming the same
applies to Ducklett Fishing. I did start a game like a few seconds
before reset started so that could’ve caused the cooldown to not
reset, from 30 back to 15 minutes, when reset happened.
edit: forgot to take a screenshot when it was still 30 minutes at
reset, but it has since increased to 40 minutes after like 10ish rounds