I must get my work finished in the course of the evening.
I must get my work finished in the course of the evening.
I have to go to work tonight.
I must get the work finished in the course of the evening―before the evening is out.
I have to go to work tonight.
That work will be finished at the end of this week.
I want this work by next Thursday.
I want this work done by next Thursday.
I'm supposed to finish this work by noon.