Renaming a timeline (iOS 10 and below)
This document refers to devices using iOS 10 and below. On iOS 11, timelines can only be renamed via the Files Browser interface. Read about this
Follow these steps to rename a timeline:
Open the timeline you want to rename
Tap on the timeline name in the toolbar
Type the new name you want to use. When you are done, close the keyboard.
The timeline file will be saved with the new name you have entered.
This name will be used as the file name on iCloud Drive and Desktop computers.