From: John R Pierce pierce@hogranch.com
How to set up timing if NTP was block by ISP?
your ISP doesn't have their own timeserver you can access?? I've never heard of an ISP blocking ntp protocol, unless they are blocking /everything/ but web and email via proxy, whereupon they aren't really an internet service provider, they are just a web-n-mail service provider.
Maybe related to the (recent?) DDOS using ntp servers...?
JD