Question: I'm looking at the PayPal `IPN docs`, and it says the `datetime` stamps of their strings are formatted as:

```
HH:MM:SS DD Mmm YY, YYYY PST

```

So year is specified twice?

Once in double digits, and another with 4 digits? 

This looks bizarre.

Answer: 
This seems to be a bug in the documentation. The actual format should be "HH:MM:SS Mmm DD, YYYY PST" (e.g. "08:30:06 Apr 19, 2017 PDT")
For php, the syntax is `date("G:i:s M m, Y T");`