Tell HN: Google USD to IDR conversion error?

I opened a new tab in Safari and then typed "1 USD to IDR" in the address bar and hit enter. Google showed that USD 1 is IDR 8.170,65. It is like Google increased the value in one hour. In previous hour, the value is still around IDR 16.355,25.

You can find in the internet people creating content out of this 'error'.