Earlier this week we told you that Apple might be launching OS X 10.8 Mountain Lion on July 19th. New information that has surfaced today may lend some weight to that date.

According to a report from MacRumors, employees at a third party company that specializes in tech support for Apple products are being told they cannot go on vacation during the week of July 22-29. The company is apparently telling employees that they need “all hands on deck” during that time, though they are not telling employees why.

While it could be that something else is going on, the likeliest reason for the vacation ban is the launch of OS X Mountain Lion. The employees who were told not to take vacations during that period were in the desktop and portables division. Apple promised at last week’s WWDC 2012 keynote that Mountain Lion would ship in July, though they declined to offer a specific date.

Interestingly, this date range seems to contradict the earlier report that Mountain Lion would be releasing on the 19th. It’s possible, however, that either the earlier report or the tech support company’s date range is a bit off. Either way, a mid-late July launch for Mountain Lion is looking pretty likely at this point.