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(Ruby) Get Current Date/Time from NIST Time ServerDemonstrates using Chilkat Socket to connect to an NIST time server and (using the old Time Protocol (RFC 868)), will read the current GMT time. Note: This is not necessarily the very best means for getting the current date/time. The most commonly used time protocol is the Network Time Protocol (RFC-1305).
require 'chilkat' # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. socket = Chilkat::CkSocket.new() # Connect to an NIST time server and read the current date/time maxWaitMs = 4000 useTls = false success = socket.Connect("time-c.nist.gov",37,useTls,maxWaitMs) if (success != true) print socket.lastErrorText() + "\n"; exit end # The time server will send a big-endian 32-bit integer representing # the number of seconds since since 00:00 (midnight) 1 January 1900 GMT. # The ReceiveInt32 method will receive a 4-byte integer, but returns # true or false to indicate success. If successful, the integer # is obtained via the ReceivedInt property. bigEndian = true success = socket.ReceiveInt32(bigEndian) if (success != true) print socket.lastErrorText() + "\n"; exit end dt = Chilkat::CkDateTime.new() dt.SetFromNtpTime(socket.get_ReceivedInt()) # Show the current local date/time bLocalTime = true print "Current local date/time: " + dt.getAsRfc822(bLocalTime) + "\n"; maxWaitMs = 10 socket.Close(maxWaitMs) |
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