TypeScript/JavaScript class intended to help a separate Paginator class paginate data that can only be stored in memory one batch at-a-time. Figures out what pages belong in what batch
A TypeScript/Javascript class with properties that give information about a dataset too big to be loaded all at once that is stored in memory one batch at-a-time, with the intention of paginating the batch
2 functions receive Date and return date/time as object containing ymd (year month day) and hms (hour minute second). One function does machine's local time, the other does UTC time.