Cannot remove poll end date timer, on front end it says “NaN”

Hello

In the settings of each poll, it says you can leave the end date option blank for the poll to never end. But, it does not let me delete the date in it, the placeholder date is always the current date. Maybe that is not a real end date and it is considered empty, but on the front end, it says “NaN” days, hours, minutes and seconds, like this: https://prnt.sc/u5rnm9lLQ7E4. This doesn’t look professional at all, can this be removed completely?