Collection Time not accurate

[edx100]

I am using har-puppeteer to retrieve network metrics from Chrome on page load.
I created a collection time that tracks the time.
har-puppeteer also collects its own collection time metric "startedDateTime": but it shows 1-2 hours behind the actual collection time.
Can someone help explain/fix this gap? And also provide documentation on the har-puppeteer metrics definitions.

Attached code here:
collectionwithWL - Copy.zip