long nd = 1000 * 24 * 60 * 60; //每天毫秒數
long nh = 1000 * 60 * 60; //每小時毫秒數
long nm = 1000 * 60; //每分鍾毫秒數
long diff = DateTime.now().getTime() - yourTime.getTime();//獲取兩個時間差毫秒數
Long day = diff / nd; 相差的天數
Long hour = diff / nh; 相差的小時
Long minutes = diff / nm; 相差的分鍾