As peopleware says, overtime is never free. Yes, it definitely can help you meet deadlines if its done every so often, but if its a regular thing, then “normal”

As peopleware says, overtime is never free. Yes, it definitely can help you meet deadlines if its done every so often, but if its a regular thing, then “normal” productivity will be much lower, so it can’t sustainably help meet deadlines again and again and again.