Setting System to Atomic Time

[johncasimir]

Does anyone know a method to set an internal clock to atomic time?. Code could be in C++ or VB.
Thanks
John

 

[chiph]

You can take a look at the US Navy clock site -- they have a number of time-related utility programs available.

http://tycho.usno.navy.mil/

You can also check the homepage of the Network Time Protocol organization:

http://www.ntp.org/

Chip H.


____________________________________________________________________
If you want to get the best response to a question, please read FAQ222-2244 first

 

[Golom]

There's also The National Institute of Standards and Technology who support both analog and digital interfaces.

[small]No! No! You're not thinking ... you're only being logical.
- Neils Bohr[/small]

 

[johncasimir]

Gentlemen. Thanks for the Links. However i'm looking for some code which i can use in an app to be able to use an avaliable atomic time over the web instead of the computer's system time. Any one know any code for that>
Thanks

 

[strongm]

I think chiph was hoping you might look at his second link, which provides the complete protocol for communicating with atomic clocks on the Internet

 

[johncasimir]

Thanks v. much! I missed that.

 

[chiph]

SNTP is much more involved than people think. You'll want to find a strata-2 or -3 machine to talk to. Don't try and talk to a strata-0 machine -- those are the master clocks for the entire internet, and they don't want ordinary people taking up their CPU cycles (which is why the load is distributed out to the higher-numbered strata).

Microsoft & Apple both run time servers that you can connect to.
time.windows.com
time.apple.com

You might also want to read:

http://support.microsoft.com/?kbid=216734

Chip H.


____________________________________________________________________
If you want to get the best response to a question, please read FAQ222-2244 first