how do I insert the LTM date & time into hsl log

I have writen an irule which sends an apache type log via HSL to our syslog server.

 

We also us caching.

 

 

For the HTTP response I use the date filed in the HTTP response header.

 

 

For the cache repsonse I want to insert the date and time from the LTM, which is synched via ntp, into the HSL log.

 

How can I do this?