Photo/Illutration Yahoo Finance’s website wrongly posts a note that says, “The Japanese stock market is closed,” on Dec. 23. (Captured from the internet)

Yahoo Finance users who woke up on Dec. 23 to check the financial information website for the latest stock prices were in for a rude awakening.

“This is the emperor’s birthday. The Japanese stock market is closed today,” flashed the message on the Yahoo Finance site.

However, with the April abdication of Emperor Akihito, now emperor emeritus, Dec. 23 is no longer a national holiday to observe his birthday.

In fact, the stock market opened as usual on the day at 9 a.m.

But the computer system of Yahoo Finance, operated by Yahoo Japan Corp., thought otherwise through an oversight, causing a system glitch from the morning.

Difficulties with stock prices not being updated have been continuously reported on the site.

The stock information on Yahoo Finance had not been updated since 3 p.m. on Friday, Dec. 20, when the market closed for the week.

A red-faced Yahoo Japan later posted a message that said: “Currently, updates on stock prices have stopped. We apologize for any inconvenience caused in connection with this and ask that you wait until the system returns to normal.”

The recovery was still in progress as of 2:34 p.m., according to the company.