When we wish a happy New Year, or say things like “good bye [YEAR OF HORROR*],” it’s not that we don’t know that time is an arbitrary measurement, or that one year flows into the next without revelation, or that one day flows into tomorrow, like the following hour, the following minute, the second after you read this sentence. We implicitly understand that as soon as 2020 ends in our respective time zones everything will not magically change other than the little number at the end of the year.