One thing which came handy for me was list of timezones I can use on Cisco devices. That came very useful during NTP deployment. So, here is is… timezones available for use on Cisco platform.

Code Time Zone
GMT Greenwich Mean
UT Universal (Coordinated)
WET Western European
BST British Summer
WAT West Africa
AT Azores
AST Atlantic Standard
ADT Atlantic Daylight
EST Eastern Standard
EDT Eastern Daylight
CST Central Standard
CDT Central Daylight
MST Mountain Standard
MDT Mountain Daylight
PST Pacific Standard
PDT Pacific Daylight
YST Yukon Standard
TDT Yukon Daylight
HST Hawaii Standard
HDT Hawaii Daylight
CAT Central Alaska
AHST Alaska-Hawaii Standard
NT Nome
IDLW International Date Line West
CET Central European
MET Middle European
MEWT Middle European Winter
MEST Middle European Summer
MESZ Middle European Summer
SWT Swedish Winter
SST Swedish Summer
FWT French winter
FST French Summer
EET Eastern Europe, USSR Zone 1
BT Baghdad, USSR Zone 2
ZP4 USSR Zone 3
ZP5 USSR Zone 4
ZP6 USSR Zone 5
WAST West Australian Standard
WADT West Australian Daylight
CCT China Coast, USSR Zone 7
JST Japan Standard, USSR Zone 8
EAST Eastern Australian Standard
EADT Eastern Australian Daylight
GST Guam Standard, USSR Zone 9
NZT New Zealand
NZST New Zealand Standard
NZDT New Zealand Daylight
IDLE International Date Line East