The end is nigh. We’ve known this was imminent, but come March 13, 2010, YouTube will no longer officially support Internet Explorer 6.

Ars Technica found the specific date buried in a YouTube Help item pertaining to browser support. Under the section header, “When does older browser support end for YouTube (YouTube) and what does this mean?,” it reads:

“Support stops on March 13th. Stopped support essentially means that some future features on YouTube will be rolled out that won’t work in older browsers.”

The support entry also details that Google’s YouTube will notify site visitors of the change in browser support by displaying an interstitial every two weeks — indefinitely until the user upgrades — that will serve as a very blatant visual reminder and encourage IE6 browsers to upgrade accordingly.

The interstitial will appear in place of the video in question and warn, “On March 13, we are dropping support for your browser. You’ll still be able to watch videos after that date, but new features may not work properly.” The interstitial also suggests alternative browsers — Google Chrome