ATTRIBUTES:
f_weekday -- full weekday names (7-item list)
a_weekday -- abbreviated weekday names (7-item list)
- f_month -- full weekday names (14-item list; dummy value in [0], which
+ f_month -- full month names (13-item list; dummy value in [0], which
is added by code)
- a_month -- abbreviated weekday names (13-item list, dummy value in
+ a_month -- abbreviated month names (13-item list, dummy value in
[0], which is added by code)
am_pm -- AM/PM representation (2-item list)
LC_date_time -- format string for date/time representation (string)