Cisco time synchronisation & summer time

Having accurate time configured on Cisco routers is important, if for nothing else being able to look through log files and understand when something happened is imperative. Configuring time on Cisco routers requires three different configuration elements:

  • Configuring an external time source, usually NTP
  • Configuring the device to adjust for summer time/daylight savings
  • (Optionally) using the adjusted time in debugging and logs

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