How can I change the date format according to the date format of Salesforce?

 In the context of Salesforce, you can change the date format from the legacy system into the format of Salesforce during the process of migration by using the data loader. This involves the conversion of the date format from YYYY-MM-DD to YYYY-MM-DDTHH:MM:SSZ before going through with the process of inserting the data into Salesforce:-

Here is an example given of how you can do it by using mapping functionalities of data loader:-

1. Open the data loader and then try to log into your Salesforce.org
   
2. Then try to create a new mapping or try to edit an existing one.
   
3. In the mapping, you can select the field which represents the date from the legacy system.
   
4. Create a new mapping or edit the existing one in the section of “field mapping”.
   
5. Now, you can use the transformation function CINVERTTIMEZONE() to convert the date format.
   
6. Now, you can save the mapping and run the data import process.