•"The president resumed his duties at 11:35 am," (1635 GMT), the White House said in a statement.
•Biden is the oldest US president in history.
Vice President Kamala Harris held presidential powers for a total of one hour and 25 minutes while President Joe Biden was under anesthetic, the White House said Friday.
The White House press office said that official letters to Congress declaring the temporary transfer of power were sent at 10:10 am (1510 GMT).
"The president resumed his duties at 11:35 am," (1635 GMT), the White House said in a statement.
Biden underwent his first annual physical exam as head of state Friday, the eve of his 79th birthday.
Any details on Biden's health are sure to be closely watched, given speculation on whether he will stand by his stated intention to seek a second term in 2024.
The oldest US president in history, Biden pledged before his election a year ago to be "totally transparent" with voters about all aspects of his health.
The White House also said earlier this year that the results of Biden's eventual checkup would be made public.
In a letter released by his election campaign in December 2019, Biden's physician had described him as "a healthy, vigorous, 77-year-old male, who is fit to successfully execute the duties of the presidency."
Biden does not smoke or drink, and prior to his election worked out at least five days per week, according to the letter.
He was vaccinated early on against Covid-19, and received a booster shot in September.