Steps to update workout program start date
1. Visit the 'On-demand' workout library: Select the Explore button from the bottom left corner and make sure Workouts is selected from the top menu.
2. Select your current program: This will be the program with Active tagged in the top left corner.
3. Update your schedule: Hit the Update schedule button at the bottom.
4. Choose start date: Select your new start date and hit Add to Schedule.