#### 3.25.23.3 time/date specifiers

In time/date mode, the acceptable formats are:

          Format       Explanation
          %a           abbreviated name of day of the week
          %A           full name of day of the week
          %b or %h     abbreviated name of the month
          %B           full name of the month
          %d           day of the month, 01--31
          %D           shorthand for "%m/%d/%y" (only output)
          %F           shorthand for "%Y-%m-%d" (only output)
          %k           hour, 0--23 (one or two digits)
          %H           hour, 00--23 (always two digits)
          %l           hour, 1--12 (one or two digits)
          %I           hour, 01--12 (always two digits)
          %j           day of the year, 1--366
          %m           month, 01--12
          %M           minute, 0--60
          %p           "am" or "pm"
          %r           shorthand for "%I:%M:%S %p" (only output)
          %R           shorthand for "%H:%M" (only output)
          %s           number of seconds since the start of year 2000
          %S           second, integer 0--60 on output, (double) on input
          %T           shorthand for "%H:%M:%S" (only output)
          %U           week of the year (week starts on Sunday)
          %w           day of the week, 0--6 (Sunday = 0)
          %W           week of the year (week starts on Monday)
          %y           year, 0-68 for 2000-2068, 69-99 for 1969-1999
          %Y           year, 4-digit

Except for the non-numerical formats, these may be preceded by a "0" ("zero", not "oh") to pad the field length with leading zeroes, and a positive digit, to define the minimum field width (which will be overridden if the specified width is not large enough to contain the number). The %S format also accepts a precision specifier so that fractional seconds can be written. There is a 24-character limit to the length of the printed text; longer strings will be truncated.

Examples:

Suppose the text is "76/12/25 23:11:11". Then

          set format x                 # defaults to "12/25/76" \n "23:11"
          set format x "%A, %d %b %Y"  # "Saturday, 25 Dec 1976"
          set format x "%r %D"         # "11:11:11 pm 12/25/76"

Suppose the text is "98/07/06 05:04:03.123456". Then

          set format x "%1y/%2m/%3d %01H:%02M:%06.3S"  # "98/ 7/  6 5:04:03.123"