plan9fox/adm/timezone
..
Argentina
Asia_Bahrain
Australia_ACT
Australia_Broken-Hill
Australia_LHI
Australia_North
Australia_NSW
Australia_Queensland
Australia_South
Australia_Sturt
Australia_Tasmania
Australia_Victoria
Australia_West
Australia_Yancowinna
Brazil_Acre
Brazil_DeNoronha
Brazil_East
Brazil_West
Canada_Atlantic
Canada_Central
Canada_East-Saskatchewan
Canada_Eastern
Canada_Mountain
Canada_Newfoundland
Canada_Pacific
Canada_Yukon
CET
Chile_Continental
Chile_EasterIsland
Cuba
EET
Egypt
GB-Eire
GMT
Hongkong
HST
Iceland
Iran
Israel
Jamaica
Japan
Libya
Mexico_BajaNorte
Mexico_BajaSur
Mexico_General
Navajo
NZ
NZ_CHAT
Poland
PRC
README
ROC
ROK
Singapore
Turkey
Uruguay
US_Alaska
US_Arizona
US_Central
US_East-Indiana
US_Eastern
US_Hawaii
US_Michigan
US_Mountain
US_Pacific
US_Yukon
W-SU
WET

To change the default time zone you see on your local system,
copy the appropriate file to /adm/timezone/local, which is copied
to /env/timezone by init(8).

Most of these files were provided by David Hogan.
The Israel file was provided by Amos Shapir.