For time synchronization of computers via the internet, there are some time servers that anybody can access. For example, the PTB (Physikalisch-Technische Bundesanstalt, Germany) operates two servers for this purpose. For automatic synchronization of your system time, the Z-Cron scheduler can query the time server on the Internet and can synchronize your own Windows computer with the atomic time – precise to the second.

The Z-Cron program queries a time server over port 37 via TCP/IP and sets the computer clock if necessary.

You can also change the Z-Cron default time servers if you need to by simply putting a text file with the name ntpserver.txt in the program directory of Z-Cron.

Note

You need access to a time server and you may not use any firewalls filter the TCP port 37 since the time comparison is carried out via this port. For the automatic time synchronization under Windows Vista™ and 7™ Z-Cron must be configured as a system service!

Scheduler Freeware

Z-Cron is an ideal extension to my Z-DATdump program. Z-Cron is Freeware for private use which means that it runs on workstations (Windows 2000, XP, Vista and Windows 7) without limitations and it can be installed on servers (2000/2003/2008/2010/2011) for testing purposes. The freeware version is limited to a trial period of 14 days on a Windows Server™ operating system! For commercial use or use on a Windows Server™ a server license is required!

This free Z-Cron version is exclusively intended for personal use on a single PC (workstation). Copying and redistribution of the complete program package is allowed for personal use only.

Commercial or professional use of this Z-Cron Freeware version is not allowed! For commercial use you have to buy a license!

Download freeware version Z-Cron

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