Good morning AyushMittal3,
Thank you for reaching out to the Microsoft Advertising community forum!
I understand that you are looking to change your date format. Unfortunately at this time there is no option to change the date layout.
I recommend sending us feedback on this matter. To do so simply log in to your Microsoft Advertising account, select the Help button at the top right of your screen, and from the drop down menu click Send Us Feedback. Here you can suggest a feature where customers can select the date format that works best for them.
Thank you,
Caitlyn | Microsoft Advertising Support Specialist | 800-518-5689