I am using business hours class to get the hours, minutes difference between when a lead is assigned to a user and when it is acted upon.
The business hours are 7 AM to 4 PM from Monday to Friday, with Saturday and Sunday off.
Here is the code:
Id businessHoursId = [select Id from BusinessHours where isdefault = true ].id; DateTime dateTime1 = Datetime.valueOf('2017-08-01 22:16:00'); //last assignment date/time (when a lead is assigned to a sales person) DateTime dateTime2 = Datetime.valueOf('2017-08-02 09:54:00'); //first activity date/time Long diff = BusinessHours.diff(businessHoursId, dateTime1, dateTime2); System.debug('------- diff millseconds: ' + diff); Decimal hours = (Decimal)diff/1000/60/60; Decimal mins = (Decimal)diff/1000/60; System.debug('------- hours: ' + hours); System.debug('------- minutes: ' + mins);
Now since the lead is acted upon Aug 2, 9:54 AM the difference should be 2:54 (2 hours 54 mins)
However the milliseconds value returned is 10440000
When I convert it to hours I get 2.9, so 2 hours and 90 minutes. I retested it using this tool: http://www.calculateme.com/Time/Milliseconds/ToHours.htm
For minutes it returns 174 minutes.
It does this same thing to other calculations as well where it will add few extra minutes to the difference (by few extra I mean a good amount of 10-15 minutes).
How is this possible? Am I doing anything wrong or does Salesforce adds some extra minutes to the business hours.