I would rather know the cause. It seems like the lesser of two evils to me. If I knew the date, I would just grow old dreading that date. Even if it's not within that year, it'll affect my day for the years leading up to it. I'd probably live in fear of the month, even. If I were to die on March 7th, 2040, every year March rolled around, I would just live in agony since it would be the month that I were to die, and I would probably just end up counting down my days.