Returns an array of ID's that are between the start and end dates, or if just a stream is given, uses the start and end dates in the global event structure.

Returns an array of event ID's that has an alarm going off between the start and end dates, or if just a stream is given, uses the start and end dates in the global event structure.

Although this function can handle dates all the way back to 4713 B.C., such use may not be meaningful. The calendar was created in 46 B.C., but the details did not stabilize until at least 8 A.D., and perhaps as late at the 4th century. Also, the beginning of a year varied from one culture to another not all accepted January as the first month.