org-time-string-to-absolute

org-time-string-to-absolute is a compiled Lisp function in `org.el'.

(org-time-string-to-absolute S &optional DAYNR PREFER SHOW-ALL BUFFER POS)

Convert a time stamp to an absolute day number.
If there is a specifier for a cyclic time stamp, get the closest
date to DAYNR.
PREFER and SHOW-ALL are passed through to `org-closest-date'.
The variable `date' is bound by the calendar when this is called.