I want to know due date for my assignment which is given by teacher. In this situation, is it correct to say

When is the due date for this assignment?


What is the due date for this assignment?

or other things you recommend?


2 Answers 2


In casual, every day use, both would be fine, but if you want to be strict, you would either say:

"What is the due date for this assignment" or "When is this assignment due?"

The "what" is asking for a specific name / figure denoting a point in time, and the "when" is actually asking for a point in time - the answer does not have to take the form of a date. For example you could answer "tomorrow", or "in 4 weeks", whereas the first question specifically asks for a date.


Both are correct. Likewise, What is the DEADLINE? or When is the DEADLINE?

See more examples from the Longman Dictionary of Contemporary English:

  • The new Jan. 22 due date also applies to taxpayers in Washington, Mr Keith adds.
  • The amount and due date will be announced in advance.
  • It was less than satisfying; and yet as his due date neared he kept on, sometimes all night.
  • A loan stock holder is not hampered by such restrictions if his loan stock is not paid on the due date.
  • My first child arrived quite quickly on the due date.
  • The covenant to pay the rent on the due date, quarterly in advance usually, is absolutely fundamental.
  • The due date coincides with the closing ceremonies in Atlanta.
  • Fewer than 5 percent of women deliver on their due date.
  • Only a significantly wrong due date separates Lou Madden from a perfect Super Bowl attendance record.

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