The star was ordered by Judge Stephanie Sautner to complete at least 12 shifts at the Los Angeles County Morgue by December 14.
And TMZ.com is reporting that the 25 year-old has already done 10 days with three weeks to spare.
The Mean Girls star also apparently has a great reputation with her colleagues at the morgue, who are impressed with how hard she is working. She is apparently polite, hard-working and never complains about the duties asked of her.
Judge Sautner told Lohan at her probation violation hearing last month that if she completes all of her court-mandated hours in time then she will stay out of prison, but if she slips up then she stands to spend up to 300 days behind bars.