these be great little clock . I have use they for over 15 year , and keep buy they 3 or 4 at a time . why ? because sooner or later I will leave my clock in a hotel room somewhere . -lrb- and once a colleague find it and `` sort of fail to return it '' because she like it so much . -rrb- important to I be that it have separate hour and minute setting - I cross a lot of time zone , and reset this clock be as easy as can be . I have try the clock that sense the time zone automatically , which work fine in the US but not at all in most of the rest of the world . this clock be reliable , easy , small , light , durable and cheap . the all-time bargain of the clock world . just great .