The voluntary work-from- home period will end and employees in the Bay Area and several other U.S. locations will return to work the week of April 4.

It has been a long and challenging two years since the vast majority of our people started working from home, according to an email to employees that was viewed.

Other offices will return based on local conditions.

CNBC reported last week that the company had been relaxing some of its Covid-19 mandates in preparation for a return. The company hadn't decided a new date for the official return since it last pushed off the deadline.

Most workers are expected to come into the office three days a week and have two days of remote work.

The reopening of amenities such as cafes, restaurants, massages and shuttles was included in the note fromCasey. Employees entering physical workspace still need to be fully vaccined or have an approved accommodation.

The company will be testing new ways of working and will gather insights, data, and feedback along the way.

The company will help people transition to their new routines and aim to be fully functional in their hybrid working approach in March. The benefits team is piloting 15-minute virtual drop-in meetings with trained counselors to help with the return.

Almost 15,000 of the company's 156,500 full-time employees around the world have transferred to a new location or moved to fully remote work, and 85% of applications have been approved. He said that employees who need more time can request a work-from- home extension.

Some roles may need to be on site more than three days a week due to the nature of their work, if employees choose to work from the office more often.