Hi,
Thank you for posting your query in our community.
Based on your description, you want to change date format from month/day/year format to day/month/year format, you can follow the below steps:
- Go to your list, where you would like to see the formatted date and time.
- We need to add a calculated column to display the format and use the sample code given below(you could hide the original column if you don't want):
Below is the test result:
Best regards,
Jazlyn