- Elon Musk emailed Twitter staff Wednesday about remote working, Platformer's Zoë Schiffer tweeted.
- The Twitter owner told them in an email sent at 2:30 a.m. that the "office is not optional."
- Musk noted in the email that the office in San Francisco was half empty Tuesday, Schiffer tweeted.
Elon Musk reportedly emailed Twitter staff in the early hours of Wednesday to remind them about the company's remote working policy.
Platformer managing editor Zoë Schiffer tweeted: "Elon Musk sent Twitter employees an email at 2:30am saying the 'office is not optional.'"
The Twitter owner noted in his memo that the company's headquarters in San Francisco "was half empty yesterday," per Schiffer's tweet.
However, Musk has fired thousands of employees since taking control of the company in late October with the total now thought to be about 1,300, per CNBC.
Twitter, whose press office now automatically respond with a poop emoji, didn't respond to a request for comment from Insider.
Musk has previously sent emails to employees in the middle of the night. In November, he sent one at 2:39 a.m. telling employees they would no longer be permitted to work remotely.
Musk began the memo by saying there was "no way to sugarcoat the message" about the economic climate and its influence on Twitter, which depends on advertising revenue.
The Tesla and SpaceX CEO is no fan of remote working. In May 2022 he told Tesla staff to return to the office full-time, or find jobs elsewhere.
Following the ultimatum, Tesla started to monitor employees' office attendance, Insider previously reported.
Musk has said that working from home during the pandemic "tricked" people into thinking they don't need to work hard. Economists have disputed his thinking.
