In the C4C system, we want to set the date/time format as DD.MM.YYYY and the time zone as (UTC+03:00) Turkey by default. So we always want to make the same region. Can't we do it this way by default?
Currently this option is only available on individual level. You can also submit it as a feature request on our Influence page at https://influence.sap.com/SAPCloudforCustomer that is the official tool to propose new functions and share scenarios like this.