https://www.openwall.com/lists/musl/2018/04/07/4
musl - [PATCH] implement wcsftime padding specifier extensions
muslpatchimplementpaddingspecifier
https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/strftime-wcsftime-strftime-l-wcsftime-l?view=msvc-160
strftime, wcsftime, _strftime_l, _wcsftime_l | Microsoft Learn
Learn more about: strftime, wcsftime, _strftime_l, _wcsftime_l
strftimelmicrosoft