856512 - [FHR] How is the time open computed

Status: VERIFIED WORKSFORME

(Firefox Health Report Graveyard :: Web: Health Report, defect)

Description

["Saptarshi Guha[:joy]"]

How is

a) vital stats --> time open (mine = 3072 mins)
b) this month --> time open (mine=28 mins)

computed? 
None of the ways i computed 

- summing org.mozilla.appSessions.previous$cleanActiveTicks*5/60 mins
- summing org.mozilla.appSessions.previous$cleanTotalTime/60 mins

But none match. Moreover, I live in San Francisco and the time is 10:20 pm, March 31st. However, i have April 1st in my days fields(no jokes!). Does this mean "This month" is April?

Comment 1

[Laura Thomson :laura]

(In reply to Saptarshi Guha from comment #0)
> How is
> 
> a) vital stats --> time open (mine = 3072 mins)
> b) this month --> time open (mine=28 mins)
> 
> computed? 
> None of the ways i computed 
> 
> - summing org.mozilla.appSessions.previous$cleanActiveTicks*5/60 mins
> - summing org.mozilla.appSessions.previous$cleanTotalTime/60 mins
> 

The calculation is in this function:
https://github.com/mozilla/fhr-jelly/blob/master/js/data.js#L31

As you can see it's the cleanTotalTime + abortedTotalTime for the period.


> But none match. Moreover, I live in San Francisco and the time is 10:20 pm,
> March 31st. However, i have April 1st in my days fields(no jokes!). Does
> this mean "This month" is April?

I would guess the FHR data service uses UTC.  deinspanjer may be able to comment further.

Comment 2

[Daniel Einspanjer [:dre] [:deinspanjer]]

Yes, all dates in FHR data are UTC.

Comment 3

[Laura Thomson :laura]

Can this be closed?

Comment 4

["Saptarshi Guha[:joy]"]

Yes, absolutely, thanks

Comment 5

[Matt Brandt [:mbrandt]]

Bumping to worksforme per comment 4 - thanks Saptarshi

Comment 6

[Matt Brandt [:mbrandt]]

QA verified wfm per comment 2 and comment 4.