Fortunately, the representation of date and time information in strings suitable for inclusion in XML files has been solved in a standard way already so you don't need to invent anything new.

所幸的是，适合于XML文件的日期和时间的字符串表示已经通过一种标准的方式处理好了，您无需再费心创建新的。

youdao

In part to bring the United States into closer alignment with the rest of the world, the AIA eliminates the first-to-invent system for U.S. patent applications with an effective filing date of March 16, 2013 or later.

FORBES: Patent Reform: Five Things Technology Companies Need to Know

Patent applications filed before that date can still realize the benefits of the first-to-invent system.

FORBES: Patent Reform: Five Things Technology Companies Need to Know