How to get System DateTime format?

August 28, 2023 by Tarik

If it has not been changed elsewhere, this will get it:

string sysFormat = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern;

If using a WinForms app, you may also look at the UICulture:

string sysUIFormat = CultureInfo.CurrentUICulture.DateTimeFormat.ShortDatePattern;

Note that DateTimeFormat is a read-write property, so it can be changed.