Here are some best practices to keep in mind:

1. Use the same format for the date every time you submit a cover letter. ...
2. Choose a clear and easy-to-read format. ...
3. Always include the date at the top of the cover letter, either aligned with the left margin or centered.
4. If the job posting specifies a deadline or start date, make sure to include this information along with the date on your cover letter.

What Is the Appropriate Date Format for a Cover Letter?

• Long Format When you write your cover letter, it is important to use the long date format. This includes the entire written month of the year, the date and the year, written with four digits. ...
• United States In the United States, you generally will begin your date with the name of the month. ...
• Outside the United States ...
• Placement ...