Absolute rather than relative times in expires directives

[rgrraj]

Hi Francis 

The same works like a charm in 1.9.6 but not in 1.9.2. The error log shows
the follow,

"[emerg] 6151#0: "expires" directive invalid value in" respective sites
enabled file. 

And our configuration is just as follows, 
## in nginx.conf
 map $time_iso8601 $expiresc {
       default "3h";
        ~T22 "@00h00";
        ~T23 "@00h00";
    }

##in sites enabled file,
  location /path/to/files/ {
         expires     $expiresc;
  }


doesnt allows to restart nginx and fails with the above error in nginx error
log. 

Any thoughts ??

Thanks
Govind

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,115406,264082#msg-264082