How often does Live Search changes its background?

Back in July 2008, Microsoft added background images to Live Search homepage. While it didn’t added much to the overall function of the search engine itself, what it added was a nice touch to the homepage which differentiated it with other competing search engines like Google and Yahoo.

For the last few days, I was wondering how often does Live Search changes its background image?

Live Search

After thorough observation, I came to the conclusion that Live Search homepage automatically changes background images daily at exactly 1.00 AM Seattle PDT (Pacific Daylight saving time). Click here to check out the exact time of your city at which Live Search changes its background image.

Do let us know whether or not the change occurs for you at the said time.