I think I’m so used to working with ancient hardware that runs on cryptic incantations and relies on knowledge that was lost to the ages before I was born that I sometimes forget that it doesn’t always have to be like this.

DST change today, realised the new Cisco SPA525g2 phones don’t have a proper DST rule in place. After googling unsucessfully for a few minutes I remembered that these are relatively new phones. The manual might actually be useful. And it was.

So the proper DST code for Mountain Time is:

start=3/2/7/2;end=10/1/7/2;save=1