No need to look too closely, now ;)
I think they mean writing Tu Th Sa Su instead of T T S S (personally I'm a fan of T / theta if I'm doing single-letter abbreviations but Sat/Sun is still not the best)
alt Hacker News
I think they mean writing Tu Th Sa Su instead of T T S S (personally I'm a fan of T / theta if I'm doing single-letter abbreviations but Sat/Sun is still not the best)