Writes message times your way, with separate formats for today and older messages.
HH:mm, and one for older messages, such as ddd, D MMM YYYY HH:mm.YYYY year, MM month, MMM month name, DD day, ddd weekday, HH 24-hour, hh 12-hour, mm minutes, ss seconds and A AM/PM. Text in [brackets] stays as written. Leave one empty to keep Discord's.