Rollback, Followers, and Forks - Learning Heroku Postgres - page 127

There is another way to perform the rollback. It is through the --by flag. You can specify
a time interval, and it should be of the X days X hours X minutes format. Here is
an example:
$ heroku addons:add heroku-postgresql:standard-0 --rollback
database_color_name --by '2 days 5 hours 10 minutes' --app
your-app-name
Tip
You cannot specify both the --by and --to options for rollback. You should specify one
or the other.