No, if the pings fail on those addresses, then those servers are most likely down. It's not your program.
Can you post the addresses of the servers that don't work?
208.184.49.9 has absolutely nothing running, no server, nothing.
132.163.4.101 also has nothing running on it. Although, this is a NIST time server IP address.
192.53.103.104 also has nothing running on it. Though Shodan has logged the NTP (Network Time Protocol) ports.
66.243.43.21 doesn't have anything running on it.
205.188.185.33 doesn't have anything running on it. Another dead server.
192.43.244.18 Has nothing running on it. In fact, the host name actually says the following: "this.has.not.been.ntp.server.time.nist.gov.since.2012."
In light of this information, perhaps you should shoot the program developer an email and tell him that he needs to update what IPs the program uses because many of them are just simply off line and not used anymore.
Right. So for some reason most of the time servers in the US and Germany have closed (unlikely) or for some reason have changed their IP addresses (incredible), but nothing else seems to make sense !
I can modify the IP addresses within the programme - when I can find out the new IPs. But I'll send an Email to the author anyway.
Thanks for your help - I'll have a look at the World Clock Portable programme.
Didn't work for me. Run. "Loading" then says I have no Internet connection. Locks up.
It might be your firewall or anti-virus. It's not really the best program, and I'm sure there are betters. It renders in Flash so that kinda sucks but you don't need Flash.
Try these if you don't already have 'em. Alternative time servers