Time and day for accepting offer?

[krispykreme]

Friends, I know this may have been asked before but is the final decision to be expected the upcoming midnight or end of business day on Friday, April 15th?

[MaxWeberHasAPosse]

thought it was the end of business day in respective time zone of university.

[TakeruK]

I would personally interpret a deadline to be "end of business day in local time zone of that university". This is how most other deadlines in academia work (e.g. conference submission, grant proposal, etc.). Many grad schools will write an explicit time (e.g. 11:59:59PM April 15) because of how many questions they have got in the past! But you really should check with your school in question if it's not written somewhere.