CAIRO (AFP/Reuters) - Egypt will hold a presidential poll this year ahead of parliamentary elections, interim president Adly Mansour said on Sunday, in a move seen to benefit the army chief, if he stands.

The military-installed government says the elections will restore democratic rule by the end of the year, after last July's overthrow of Islamist president Mohamed Mursi by army chief Abdel Fattah al-Sisi.

The move is a change to the political timetable that could see army chief Gen Sisi elected as head of state within months.

Parliamentary elections were supposed to happen first under the roadmap agreed after the army deposed Mursi following mass protests against his rule.