Three New York firms—Skadden, Arps, Slate, Meagher & Flom, Davis Polk & Wardwell and Weil, Gotshal & Manges—are now leading the push for a four-day office week, and the group may prompt others in Big Law to go the same direction, analysts say.

Their moves come as return-to-office pressure is building in the legal industry, and as many clients, including in the financial and real estate industries, are already back in the office full-time—another push for lawyers to work in the office most days of the week.