Batch clear time tracking field

It would be very useful to be able to batch clear the time tracking field for multiple items at once.

I have a set of monthly management accounts for which I create new board each month with a large set of tasks listed as items, and I time track each task every month to distinguish which months and/or tasks have any issues etc. I then duplicate the board for the next month but I cannot batch clear the time tracked - I have to clear each item manually.