Production route jobs time updation

Hello Team! Greetings.

We need to update Route jobs from/to date and time, from xml file.

Requirement: we will schedule the production order and date and time should be updated as per the file(xml), file will contains date/time for operations as well. 

                      if the production order already scheduled, then we will schedule again from the file.

I need your suggestions on below

1) is there any standard functionality to update from/to date and from/to time of route jobs?

2)If there is no standard functionality to update date/time, tables found for these forms are prodRoute, prodRouteJob, updating these tables are enough  enough or is there any other places need to update?