I’m sure that in most cases an inability to help out on an off day would be a mark against ones name, a definite candidate for a list of trouble makers. Therefore, one is actually on standby on this day in order to preserve his or her reputation and not off and therefore, should be rescheduled for a legal off day of 1 in 7 or 2 in 14, after such a day of standby so that one can relax properly without harassment and regain enthusiasm for his company and job. Come on ops, you can’t have your cake and eat it. Are they off, or on standby. It seems all you actually doing is listing a pilot as ‘off’ but using him as a standby pilot in order to reduce duty times.