Most people who have this question want to know how much it might cost them to run a propane powered generator at their home. This is a very good question because there are some significant advantages to using these devices but there are also some disadvantages that you should probably know about.
Early finish date â adding duration to the early start date. Latest start date. Latest finish date â adding duration to latest start date. Slack time â difference between latest start date and early start date or between latest finish date and early finish date.
For Example if you were to write a date function as =DATE(2009,4,35) it would give you a date 35 days ahead of 1-Apr-2009. The result in this case would be May 5, 2009. Similarly you could use a negative number generate a date in the past. (You can even enter fractions though that would not be much use.).