Using Ntp; Clock Synchronization - HP procurve 8100fl series Management And Configuration Manual

In this example, to convert PST to UTC, first convert the local time into a 24­
hour clock format, 08:10:40. Then add 8 to convert to UTC. This gives the time
conversion as 16:10:40. A slightly more complicated conversion occurs when
adding 8 (for PST) forces the 24-hour clock into the next morning. In this case,
make sure you enter the date correctly - as the next day.
For example, to convert 8:30 PM on March 5 from PST to UTC, you would
convert 8:30 PM to 20:30 hours. Adding 8 to convert to UTC gives you 04:30
hours, on March 6.
Use the show clock command in Privileged Exec mode to display the current
date and time on the 8100fl switch. For example:
ProCurve#show clock
*16:10:40 UTC Wed Mar 5 2006

Using NTP

Network Time Protocol (NTP) synchronizes the clocks on devices in a net­
work to UTC, ensuring consistent and accurate times across network opera­
tions. If your local ProCurve 8100fl time differs too much from the time held
by the pool of NTP servers (typical of when the ProCurve 8100fl is starting
up), NTP will force the clock to the NTP time. Normally, NTP will make minor
adjustments to keep time by speeding up or slowing down the ProCurve 8100fl
clock. For more information on NTP, refer to RFC 1305.

Clock Synchronization

To cause the switch to synchronize its clock with an NTP server, use the ntp
server command. For example, the following command causes the switch to
synchronize its clock with the NTP server with IP address 10.100.1.10:
ProCurve(config)#ntp server 10.100.1.10
Time Configuration

Using NTP

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