WIth the bulk copy we are not able to select only certain items (in your case time) for a bulk copy between two versions. The only way I have got round this before is to create a series of import actions and change the mapping in each one. If you go into each of the relevant modules and choose Data/Import/Connect to Anaplan Module/select source/select your module and then do the appropriate mapping. Once you have created all these imports you could add them all together to be part of a Process which can be run in one go.
Hope this helps