Off duty? an expression is needed

[tievoli]

Hi, Could you let me know which the following one is correct? or all are wrong? or any other better expression? Thanks a lot for your reply in advance!

1) May I send you the report by end of today's office/business hour?
2) May I send you the report by dutyoff/offduty today?
3) May I send you the report by business closing today?

 

[silvester]

Hello,

May I send you the report by the end of today's business hours?

Hope it helps

 

[srta chicken]

Also, people say, "...by close of business today."