Can a post close CD correct issues on prior CDs? For example the date and time stamp was left off the prior CDs, can that be corrected after closing with a post closing CD? Or can post closing CDs only be used for clerical errors?

What date and time stamp??

I am sorry the time zone and time stamp on the LE.

You can't do anything about errors in the time zone and time disclosed on the top of the first page of the Loan Estimate. The provision of section 1026.38(f) allowing for correction of clerical errors only affects errors on the CloD.

OK - are we talking LEs or CDs and which specific time zone and time stamp are you referring to? Do you mean when the estimated closing costs expire??

OK Thanks, under provision of section 1026.38(f) can a clerical error that occurred on the 1st CD that was not corrected on the 2nd CD ( both pre-closing be corrected) be corrected with a post-closing CD?

Yes

19(f)(2)(iv) Changes due to clerical errors.

1. Requirements. Section 1026.19(f)(2)(iv) requires the creditor to deliver or place in the mail corrected disclosures if the disclosures provided pursuant to § 1026.19(f)(1)(i) contain nonnumeric clerical errors. An error is considered clerical if it does not affect a numerical disclosure and does not affect requirements imposed by § 1026.19(e) or (f). For example, if the disclosure identifies the incorrect settlement service provider as the recipient of a payment, then § 1026.19(f)(2)(iv) requires the creditor to deliver or place in the mail corrected disclosures reflecting the corrected non-numeric disclosure no later than 60 days after consummation. However, if, for example, the disclosure lists the wrong property address, which affects the delivery requirement imposed by § 1026.19(e) or (f), the error would not be considered clerical.

So, if we included the wrong property address, we have an error, but it's not clerical, it's not a change in the amount paid by the borrower and it doesn't require a refund. Are we required to send a correction? I feel like I'm missing something.

I'm sure I'll be corrected if I'm wrong but it doesn't matter if the error isn't considered clerical of not.
Clerical vs numeric requiring a refund are like degrees of errors, imho.
You still need to send a corrected CD regardless.
Check the Small Entity Guide starting on page 70.

The difference is that you cannot "cure" the error of disclosing the wrong property address, even with the corrected CloD. It's a violation, and it won't go away. In the case of listing the wrong settlement service provider but the correct amount for a closing cost, the provider name error is a violation that can be cured with a timely corrective CloD.