Metrics and its formats

[ashwinrajanta]

what is this values
"observedLastVisualChangeTs": 18549157723,
"observedLoadTs": 18536757914,
"observedTraceEndTs": 18549160231,

How do i convert it to human readable format??
is it UTC or epoch or what format?

is there any documents clearly mentioned for each metrcis and what it states???

[adamraine]

How do i convert it to human readable format??

There should be an observedTimeOriginTs entry which represents the start of the page navigation. You can do (observedLoadTs - observedTimeOriginTs) / 1000 to get the load time in milliseconds. Please keep in mind that this value will be unthrottled if you are using the default Lighthouse throttling settings (See https://github.com/GoogleChrome/lighthouse/blob/main/docs/throttling.md for more info)

is it UTC or epoch or what format?

I believe it's microseconds since system boot, although this needs confirmation.

is there any documents clearly mentioned for each metrcis and what it states???

No, this is a hidden audit for debug purposes.