Reference Guide

System Time and Date | 1475

System Time and Date

Overview

The commands in this chapter configure time values on the system, either using

FTOS, or the hardware, or using the Network Time Protocol (NTP). With NTP, the

switch can act only as a client to an NTP clock host. For details, the “Network Time

Protocol” section of the Management chapter in the FTOS Configuration Guide.

The commands in this chapter are generally supported on the C-Series, E-Series, and

S-Series, with some exceptions, as noted in the Command History fields and by these

symbols under the command headings:

e E-Series, c C-Series, s S-Series,

, or .

Commands

• calendar set

• clock read-calendar

• clock set

• clock summer-time date

• clock summer-time recurring

• clock timezone

• clock update-calendar

• debug ntp

• ntp authenticate

• ntp authentication-key

• ntp broadcast client

• ntp disable

• ntp multicast client

• ntp server

• ntp source

• ntp trusted-key

• ntp update-calendar

• show calendar

• show clock