Cob meaning in emails

In emails, "COB" is an abbreviation that stands for "Close of Business". It is often used to indicate a deadline or a time frame for completing a task or responding to an email by the end of the business day.

For example, an email might say:

"Please submit your report by COB today."

This means that the recipient should submit the report by the end of the business day, which is typically considered to be 5:00 PM or 6:00 PM, depending on the company or industry.

COB is often used in professional emails to convey a sense of urgency or to provide a specific deadline for completing a task. It is a common abbreviation in business and corporate communication, and is widely understood by professionals and businesspeople.