Howdy, Is it possible to change the calendar days

Howdy,

Is it possible to change the calendar days of the week on the top and bottom of the calendar so when viewed on an iPhone or other mobile phone the days of the week are just M, T, W etc.

See attached picture of current calendar viewed on iPhone.

Page: http://m40.siteground.biz/~heartcor/islandrolfing.com/book-a-session/

Cheers,
Casper