Program suggestion to find oldest file in directory tree

I am looking for some program to find oldest file in a Directory tree.

If such a program does not exist then I suggest PIRIFORM can create such a program and be the first on the block.

How about the dir command built into Windows Command Prompt? You can find it's options via a Command Prompt by typing in: dir /?

Also see:

* https://msdn.microsoft.com/en-us/library/6320xzye(v=vs.100).aspx

* http://dosprompt.info/commands/dir.asp

The search I used to find the above sites:

https://duckduckgo.com/?q=command+prompt+dir