Re: How do I compute time of an event in the month it occured?

This can be one way if I understood your question.

Create a variable for calculating end of month of Start Date:

v_eom_start_date=LastDayOfMonth([Started])

Similarly for end date

Calculate the day number :end_Date =DayNumberOfMonth([Ended])

Now: Do the days between

var1=Daysbetween([Started];v_eom_start_date)

The above two variables gives you the number of days used in that month

Now do var1*24*60

end_Date*24*60