Get Timesheet for user/users by Tempo API

[Deleted user]

I am sending this request to the API to get if the user have tracked his time. 

https://api.tempo.io/core/3//timesheet-approvals/user/5c16a624ccec3834a86627ea?from=2019-12-30&to=2019-12-31

Actually, i receive an error, that i can get information only about the period of a month. 

{    
  "errors": [       
    {            
      "message": "This is not a valid period. Did you mean from '2019-12-01' to '2019-12-31'?"        
    }    
  ]
}

Yes, when i put the proposed date, i receive an 200 answer, but there is no need for it.

Is there any way to check if a user have spent the estimated time(8 hours) in a specific date?