A Web site runs a contest and in the rules, it says that all email entries must be received by October 15, 2004 at 5pm. Is this a precise date and time? If not, explain how to correct the problem.

What will be an ideal response?

This not a precise day / time because a time zone is not specified. Add a time zone to make it precise, and it’s better to use a 240hour clock instead of the “am” and “pm” designations.