Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 1 Basic Configuration Commands
3Com Corporation
1-2
View
System view
Parameter
zone_name: Name of the daylight saving time, a character string of 1 to 32 characters.
one-off: Only sets the daylight saving time of some year.
repeating: Sets the daylight saving time of every year starting from some year.
time: In the format of HH:MM:SS (hours/minutes/seconds).
date: In the format of MM/DD/YYYY (months/days/years), YYYY/MM/DD, or YYYY MM
week-of-month day-of-week, where YYYY ranges from 2000 to 2099.
Description
Use the clock summer-time command to set the name, starting and ending time of the
daylight saving time.
Use the undo clock summer-time command to cancel the configuration of the
daylight saving time.
After the configuration takes effect, you can use the display clock command to view it.
Besides, the time of the log or debug information is the local time of which the time zone
and daylight saving time has been adjusted.
Related command: clock timezone.
Example
# For daylight saving time in z2 between 06:00:00 on 2002/06/08 and 06:00:00 on
2002/09/01, set the system clock ahead one hour.
[3Com] clock summer-time z2 one-off 06:00:00 06/08/2002 06:00:00 09/01/2002
01:00:00
# For daylight saving time in z2 between 06:00:00 on 06/08 and 06:00:00 on 09/01
every year since 2002, set the system clock ahead one hour.
[3Com] clock summer-time z2 repeating 06:00:00 06/08/2002 06:00:00 09/01/2002
01:00:00
# Set the system clock ahead one hour for daylight saving time starting at zero o’clock
on Sunday of the first week of January in 2002 and ended at zero o’clock on Sunday of
the first week of January in 2003.
[3Com] clock summer-time z2 repeating 00:00:00 2001 January first Sunday
07:00:00 2002 January first Sunday 1