The company has already approvedthousands of employees' requests to continue working remotely or to change locations.
Google offices are currently open and are allowing people to come back on a voluntary basis.
Pichai said the extension of the company’s return-to-office date will give employees more flexibility when coming back.
The announcement rankled lower-level workers because they said he had in the past been unsupportive of remote work.
Under the new structure, 20% of the company would work remotely.
Another 20% could work from new locations.
The other 60% would continue working from their normal office.
In June, Googlerolled out an internal toolthat calculates compensation adjustments based on relocations.