Is there - or could there be - an easy way to fix time...

...of clips recorded when the camera's date is set wrong?
Right now to do it I have to both batch rename the clips to the correct date/time and use a bulk date/time modifier app to adjust the creation and modify times.
Given that the clock forgets the time so quickly it'd be nice if there were an easy way - perhaps in the setup app - to set the start date/time when a series of clips were recorded and have the app update the clip names, file timestamps, and metadata.
Right now to do it I have to both batch rename the clips to the correct date/time and use a bulk date/time modifier app to adjust the creation and modify times.
Given that the clock forgets the time so quickly it'd be nice if there were an easy way - perhaps in the setup app - to set the start date/time when a series of clips were recorded and have the app update the clip names, file timestamps, and metadata.