I want to get DateTime from an external reliable source. I know I can get it via DateTime.Now() Method, but that can be fooled easily by changing the Systems Date and Time. Is there a way around? It is a windows form app!
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I want to get DateTime from an external reliable source. I know I can get it via DateTime.Now() Method, but that can be fooled easily by changing the Systems Date and Time. Is there a way around? It is a windows form app!
You need a Network Time Server Client class.
In short, you ask one of the numerous Time Server on Internet the date and time to set your internal PC clock using the NTP protocol.
If you search for NTP Client you will find numerous examples.
This is the first that came out from a Bing Search
Quoting:
Of course, as everything installed on a client PC, also this could be hacked faking the address of the time server and returning a different value. But this will require more work from the hacker than simply resetting the PC clock.