hypertext time protocol (HTP)
Since access to the Internet and thus to Network Time Protocol time servers is severely restricted in corporate networks for security reasons, applications in time-critical applications cannot be synchronized via Network Time Protocol( NTP). In these cases, time synchronization can be done using theHypertext Time Protocol ( HTP), an HTTP tool that uses a standard HTP feature. This takes advantage of the fact that all web servers provide the exact time of Greenwich Mean Time( GMT) upon HTTP request. HTTP is usually also available in security sensitive areas or the demilitarized zone( DMZ).