Possible percent ("%") substitions in log filename (XChat for Windows 2.6.1+)

     %n    is replaced by NETWORK name.
     %c    is replaced by CHANNEL name.


%a
    Abbreviated weekday name
%A
    Full weekday name
%b
    Abbreviated month name
%B
    Full month name
%C
    The century number (year/100) as a 2-digit integer.
%d
    Day of month as decimal number (01 - 31)
%D 
    Equivalent to %m/%d/%y.
%e
    Like %d, the day of the month as a decimal number, but a leading zero is replaced by a space.
%F 
    Equivalent to %Y-%m-%d (the ISO 8601 date format).
%H
    Hour in 24-hour format (00 - 23)
%I
    Hour in 12-hour format (01 - 12)
%j
    Day of year as decimal number (001 - 366)
%k 
    The hour  (24-hour clock) as a decimal number (range  0 to 23); single digits are preceded by a blank. (See also %H.)
%l
    The hour (12-hour clock) as a decimal number (range  1  to 12); single digits are preceded by a blank. (See also %I.)
%m
    Month as decimal number (01 - 12)
%M
    Minute as decimal number (00 - 59)
%p
    Current locale's A.M./P.M. indicator for 12-hour clock
%P
    Like %p but in lowercase: "am" or "pm".
%S
    Second as decimal number (00 - 59)
%U
    Week of year as decimal number, with Sunday as first day of week (00 - 53)
%w
    Weekday as decimal number (0 - 6; Sunday is 0)
%W
    Week of year as decimal number, with Monday as first day of week (00 - 53)
%x
    Date representation for current locale
%X
    Time representation for current locale
%y
    Year without century, as decimal number (00 - 99)
%Y
    Year with century, as decimal number
%z, %Z
    Either the time-zone name or time zone abbreviation, depending on registry settings; no characters if time zone is unknown