Dear All,
If we want to change login date than we have to first logoff and then re login with the date we required.
It is possible to change date like change site.
Since we did not receive any response from your end against the posted comments, We are unable to consider this idea to proceed further so marking this as "Will not Implement". In case you need any further help regarding this, request you to log a new idea with proper details as required by the Product Team.
Please help us with more details on which platform you want this change? What business objective are you trying to solve using this approach?