Time parameter for xml sitemap

give me time parameter for xml sitemap.I want to change frequency within a second

 

Edit
<url>
<loc>http://xxxx.com/</loc>
<changefreq>daily/monthly</changefreq>
<priority>1.0</priority>
</url>

 

<url>
<loc>http://www.com</loc>
<changefreq>ALWAYS</changefreq>
</url>
<url>

 

thanks this works on my xml sitemap

 

hey this is not actually works...give some other option

 

I tried this too and its working fine

 

Thanks this information helped me

 

This code work just fine for me. Thanks!

 

ya it works..thanks