Sept 21 (Reuters) - The ⁠governing FIA's Formula One commission agreed on ⁠Monday to reduce the standard Grand Prix distance ‌from 305km to 290km from 2027, cutting races by two or three laps.

The commission approved the change in line with ​planned refinements to 2027 power ⁠unit regulations concerning fuel ⁠flow, they said in a statement after a ⁠meeting in ‌London at the International Automobile Federation offices.

They also agreed to remove the current ⁠three-hour maximum time limit from the start ​to finish ‌of a race, including any interruptions caused by ⁠rain or ​other factors.

A two-hour limit on actual racing will remain, while a hard stop time for the end ⁠of racing activity will be ​introduced for disrupted events.

The objective is to give spectators the best possible chance to enjoy a full race ⁠when disruptions occur, the FIA said.

The commission agreed that organisers should also have greater flexibility to extend free practice sessions if they are interrupted.

Gearbox ​homologation will be removed for ⁠2027 following consultation with manufacturers and a recommendation from ​the Sporting Advisory Committee, a ‌move the FIA said would ​preserve development freedom for suppliers.

(Reporting by Angelica Medina in Mexico CityEditing by Christian Radnedge)