By switching from image-based translations to text-based translations, month names and weekday names can now be easily 'translated' with arrow (python lib). By using this method, a font was required that could display letters from a lot of languages. Since the current font was displaying 'Tofus', Google's Noto (No-Tofu->Noto) Sans font is now being used.
Unfortunately, support for chinese/taiwanese is temporary unavailable since even Noto can't display these correctly (at least for now).