How do I check the file date against the date entry in the layout.json file

[dinther]

I load the layout.json file using Newtonsoft.Json into an object that keeps the Date as a long
Then I obtain the date value from the file like so:

FileInfo fileInfo = new FileInfo(filePath);
if (fileInfo.LastWriteTimeUtc.ToFileTimeUtc() == item.date) ... 

For Thubnail.jpg I get 132989077060000000 rather than 132989725046757824 from the layout.json file.
I am unable to get a match. I started to wonder if the layout.json file is maybe wrong so I generated a layout.json file with MSFSLayoutGenerator

The layout.json file generated contains the number 132989077060000000 which would match the number I get.
Am I doing something wrong or is the layout.json file not up to date?

[mpaperno]

The module package is built with MSFS (command-line mode). It works, which is about as far as I've looked into layout.json details.

The timestamp you say is in the current layout.json, 132989725046757824, is correct (when decoded it matches exactly the last mod time of the thumbnail file). The other number you quote is not (almost 24 hours off). https://www.epochconverter.com/ldap

-Max

(Local time is UTC-4)