time-stamp-do-number

time-stamp-do-number is a compiled Lisp function in `time-stamp.el'.

(time-stamp-do-number FORMAT-CHAR ALT-FORM FIELD-WIDTH TIME)

Handle compatible FORMAT-CHAR where only default width/padding will change.
ALT-FORM is whether `#' specified. FIELD-WIDTH is the string
width specification or "". TIME is the time to convert.