How to extract work time of a user using Workfront API

Hi everyone,

I was doing some data extraction part of my organization and in that, I need to  extract a field which is work time, here is the below screenshot of it circled in red color 

I tried the api endpint https://*my.workfront.com/attask/api/v15.0/user/search?$$FIRST=0&$$LIMIT=1000&entryDate_1_Sort=asc&ID_2_Sort=asc&fields=*,parameterValues:*&isActive=true

but here I am able to get fte field , but I wanted to extract this Work time of a user using the Workfront API
Please can someone help me get the correct endpoint for extracting this field?

Thanks,
Prashant