Download the current timezone database files from
ftp://elsie.nci.nih.gov/pub/. The desired file will have a name of the form tcdataYYYYn.tar.gz, for example; tzdata2007c.tar.gz
Use gunzip and tar to extract the database files.
The extracted files reference various continents and regions as shown below. There are currently eleven regions.
If a user wishes to update to the latest timezone rules, they will need to copy the group desired into the /cvol/nf1/tz or /cvol/nf2/tz directory depending on the value in /cvol/defstart. This will truncate the filenames to 8 characters and the area names will appear as foillows: