If 'end of the past' and 'beginning of the future' are just successive A-determinations of one unextended instant, positing two aspects conflates temporal perspective with ontological structure.

?Rate how convincing each reason is below to see the overall strength.

No one has weighed in yet. Be the first to share reasons for or against this statement.

A-determination(as used in philosophy of time): A property that something has at a specific moment in time, like how an event can be labeled as 'past,' 'present,' or 'future' depending on when you're looking at it.
Conflates(in argumentation and logic): Treats two different things as if they're the same thing, or mixes them up in a way that causes confusion.
Ontological: "Ontological" refers to questions about what actually exists or is real. It's concerned with the fundamental nature of being—asking "What kinds of things are there?" rather than "How do we know about them?" For example, an ontological question might be whether numbers, ideas, or God actually exist as real things, or if they're just human inventions.
Temporal perspective(as used in philosophy of time): The viewpoint or way of looking at something from within time—basically, how things appear to us as beings who experience past, present, and future.

Based on where you are in your exploration