I have a sentence in the form 10月10日をもって辞めたい, for example。 Does this をもって mean "before", or "after". Am I free on 10日 (i.e. work till 9日23:59). Or I still have to work on 10日, and get free on 11日?
Kind of classic time uncertainty in Japanese, but this use of をもって is new to me. I hope it has some certain meaning.