What does the notation ME - 1 represent?

In the context of scheduling and date notation, the term ME typically stands for "Month End." Therefore, when you see ME - 1, it signifies the last day of the previous month. This is a common shorthand used in various scheduling systems to reference specific points in time relative to the end of the month.

Using this notation, if you were referencing ME - 1, it would refer to the date that comes immediately before the end of the current month, which indeed aligns with being the last day of the previous month. This allows for effective planning and scheduling, especially in financial contexts where month-end reporting and activities often require attention to the last day of the prior month.

The other options provided describe different time frames or points in time which, while relevant in other contexts, do not accurately describe the meaning of ME - 1. This underscores the specific nature of how data is represented and understood within the scheduling framework.