conv_time
extern const char *conv_time(struct timeval *, struct timeval *,
(void) fputs(conv_time(&DBG_TOTALTIME, &new,
(void) fputs(conv_time(&DBG_DELTATIME, &new,
conv_time(&DBG_TOTALTIME, &new, &buf));
conv_time(&DBG_DELTATIME, &new, &buf));
conv_time(char *s);
tm = conv_time(
tm = conv_time(cp);