Alcatel Carrier Internetworking Solutions omniswitch User Manual
Setting the System Clock
Managing System Files
page 2-38
OmniSwitch 6600 Family Switch Management Guide
March 2005
Enabling DST
When Daylight Savings Time (DST) is enabled, the switch’s clock will automatically set the default DST
parameters for the time zone specified on the switch or for the custom parameters you can specify with the
parameters for the time zone specified on the switch or for the custom parameters you can specify with the
start
command. In this case, it is not necessary to change the time setting
on the switch when your time zone changes to and from DST. To verify the DST parameters for your
switch, use the
switch, use the
command. A screen similar to the following will display:
-> system daylight savings time
Daylight Savings Time (DST) is DISABLED.
PST: (Coordinated Universal Time) UTC-8 hours
Daylight Savings Time (DST):
DST begins on the first sunday in april (4/7) at 2:00
DST ends on the last sunday in october (10/27) at 2:00
DST will change the time by +/- 1:00 hour(s)
The second line in the above display indicates the Enabled/Disabled status of the DST setting on the
switch. The last three lines describe the date and time parameters for the selected time zone or the custom
parameters set with the CLI. To enable daylight savings time use the following command:
switch. The last three lines describe the date and time parameters for the selected time zone or the custom
parameters set with the CLI. To enable daylight savings time use the following command:
-> system daylight savings time enable
Note. If your time zone shows “No default” in the “Time Zone and DST Information Table” below under
the DST parameters, refer to
the DST parameters, refer to
for information on
configuring and enabling DST.
The following table shows a list of supported time zone abbreviations and DST parameters.
Time Zone and DST Information Table
Abbreviation
Name
Hours from
UTC
DST Start
DST End
DST Change
nzst
New Zealand
+12:00
1st Sunday in Oct. at
2:00 a.m.
3rd Sunday in Mar.
at 3:00 a.m.
1:00
zp11
No standard name
+11:00
No default
No default
No default
aest
Australia East
+10:00
Last Sunday in Oct.
at 2:00 a.m.
Last Sunday in Mar.
at 3:00 a.m.
1:00
gst
Guam
+10:00
No default
No default
No default
acst
Australia Central
Time
+09:30
Last Sunday in Oct.
at 2:00 a.m.
Last Sunday in Mar.
at 3:00 a.m.
1:00
jst
Japan
+09:00
No default
No default
No default
kst
Korea
+09:00
No default
No default
No default
awst
Australia West
+08:00
No default
No default
No default
zp8
China;
Manila, Philippines
+08:00
No default
No default
No default
zp7
Bangkok
+07:00
No default
No default
No default
zp6
No standard name
+06:00
No default
No default
No default
zp5
No standard name
+05:00
No default
No default
No default
zp4
No standard name
+04:00
No default
No default
No default
msk
Moscow
+03:00
Last Sunday in Mar.
at 2:00 a.m.
Last Sunday in Oct.
at 3:00 a.m.
1:00