@mattmccray would you consider replacing strftime with something that doesn't need the document object?
The reason I ask, is I am working on a static generator that is running in the command line and the document object doesn't exist in this environment. I'm going to implement the change in my fork but I wanted to know if it was something you would be interested in?
The libs I'm considering are https://github.com/samsonjs/strftime and https://github.com/moment/moment