Yemeni President Ali Abdullah Saleh says he will not seek to extend his presidency when his current term expires in 2013, according to reports.
Mr Saleh, who has been in power for three decades, also pledged that he would not pass on power to his son.
He spoke to parliament ahead of a rally in the capital on Thursday which, echoing protests in Tunisia and Egypt, has been dubbed a "day of rage".
Mr Saleh came to power as president of North Yemen in 1978.
Speaking during an emergency session of the country's parliament and the consultative council, he laid out his plans to move aside.
"No extension, no inheritance, no resetting the clock," Mr Saleh said.
He spoke ahead of the planned protests, organised by civil society groups and opposition leaders.
Yemen suffers from high population growth, unemployment running at 40%, rising food prices and acute levels of malnutrition.