diary-entry-time
diary-entry-time is a compiled Lisp function in `diary-lib.el
'.
(diary-entry-time S)
Return time at the beginning of the string S as a military-style integer.
For example, returns 1325 for 1:25pm.
Returns `diary-unknown-time' (default value -9999) if no time is recognized.
The recognized forms are XXXX, X:XX, or XX:XX (military time), and XXam,
XXAM, XXpm, XXPM, XX:XXam, XX:XXAM, XX:XXpm, or XX:XXPM. A period (.) can
be used instead of a colon (:) to separate the hour and minute parts.