Absolute rather than relative times in expires directives

[rgrraj]

HI Francis 

Thanks for the same. 

It works fine in 1.9.6. But on 1.9.2 with similar configruation its throwing
"expires" directive invalid value in sites-enabled file. 
Any thoughts ?

Thanks
Govind

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,115406,264031#msg-264031