68     NUMBER, PLUS, MINUS, DOT, SLASH, ID, JUNK,  enumerator
251 	    return sc_tokid = MINUS;  in token()
283  * plus_or_minus() holds functionality common to plus() and minus()
343  * minus() is like plus but can not be used with NOW
346 minus(struct tm *tm)  in minus()  function
354 } /* minus */  in minus()
409     if ((sc_tokid == EOF || sc_tokid == PLUS || sc_tokid == MINUS) &&   in tod()
487     case MINUS:  in month()
488 	    minus(tm);  in month()
623 	    /* MINUS is different from PLUS in that NOW is not  in parsetime()
626     case MINUS:  in parsetime()
627 	    minus(&runtime);  in parsetime()