Johnathan, most jobs allow for these types of situations, called paid days off, or vacation days or sick time. To my knowledge in most cases, when you work for a company/business/school system you get a certain number of these allocations as part of your contract. Some companies offer more, other less. So, it doesn't rally have anything to do with how much the job pays. In some cases, however, if you use all the time provided but need more, some companies will dock your pay.