Article 55 of the Federal Constitution stipulates that only His Majesty The King can summon for Parliament to be in session. His Majesty also has the absolute power to prorogue or dissolve the Parliament. Therefore, His Majesty The King is vested by the Constitution to summon for the Parliament to meet within six (6) months between the last proceeding in the last session and the date appointed for its first proceeding in the next session.

For The House of Representatives, the Leader of the House or the Deputy has to determine the dates of proceeding at least twenty eight (28) days before the beginning of each session. Nevertheless, from time to time, the Leader of the House or the Deputy can change the dates that have been fixed as and when desired.

Unless dissolved, the parliamentary proceedings will commence for five (5) years from the date of the first proceeding conducted after the General Election. At the end of the five-year period, the Parliament will be dissolved and within sixty (60) days from the date of its dissolution, a General Election has to be held to elect representatives for the House of Representatives. Parliamentary proceedings must convene at a date not later than one hundred and twenty (120) days from the date of its dissolution.

For further information, please click the link below
http://www.majlisraja-raja.gov.my/