the second issue is invalid. the kata is still solvable as of 2023; the Codewars' timeout limit is still 12 000 ms. Read the description carefully:

task will always be an arbitrary function that might run for any duration between 0 to 10 seconds.

You have to take into account the task's execution time in your delaying.

But where are definitions of rot90Clock and rot90Counter ?

A couple of issues:

• no basic tests
• extended tests expect timeout of 11000ms but whole test suite execution time is capped to 12000ms by CodeWars. It seems something has changed on CodeWars side after it was published, as it seems impossible to pass tests now.