If I would say now
I will finish my work by the year 2020.
Does it mean I have to finish the work before the year 2020? Last day 31.12.2019
Or it includes even days in 2020? So last day is 31.12.2020.
Also in business strategy plan it says:
We will do this and this and this.
So they have time to do those things between 1.1.2015 and 31.12.2019.
Or it's between 1.1.2015 and 31.12.2020?