After describing the processes of legislation, a word must be said about the order of business for each day and for the session as a whole. On Monday, Tuesday, Wednesday, and Thursday the House now meets at a quarter before three, and sits until half-past eleven, when it is automatically adjourned unless business specially exempted is under consideration. But the sitting is divided by the mystic hour of a quarter past eight into two parts which are reserved on certain days for quite different kinds of business. On Friday the House sits from noon till half-past five, and on Saturday it does not meet at all unless by special vote on very rare occasions.[302:1] [Sidenote: Interruption of Business.] With the exception to be noted in a moment, all business upon which the House may be engaged is interrupted at half-past five o'clock on Friday, and eleven on other days; but unopposed business may still be taken up until the hour arrives for adjournment. During that interval the orders of the day are read, and each of them may in turn be debated and even voted upon, unless a division is challenged, or some member objects.[303:1] In short, work can be done after the time for interruption only by universal consent, a single member having power to prevent the consideration of any measure to which he is opposed. Yet a certain amount of business is transacted at these times; and, in fact, a private member's bill would stand little chance, even if no one had any serious objection to it, unless it could pass through some of its stages in this way. [Sidenote: Exceptions Thereto.] To the rule that no opposed business can be taken after eleven o'clock there is an important exception. A minister may move at the beginning of the afternoon sitting that any specified business shall not be interrupted at that hour, and the question must be put without amendment or debate. This is often done toward the close of the session, and results in sittings that run far into the night. Bills originating in Committee of Ways and Means, and proceedings taken in pursuance of a statute[304:1] or standing order, are also exempted from the rules about interruption, about taking up no opposed business after eleven o'clock, and about adjournment at half-past eleven o'clock.[304:2] It must be remembered also that closure may be moved after the hour for interruption has struck.[304:3] [Sidenote: Order of Business for the Day.] The first sitting of each day is opened with prayer. The Speaker then takes the chair, and certain formal or routine business that occupies little time is taken up in the following order.