Time Zones Are Not Static

The tzdata packages contain data files with rules for various time zones around the world. You may think that these data files are static and do not change much from year to year, but in fact many changes to the data files are required each year for various reasons. For example, here is a partial list of changes to time zones in Red Hat Exterprise Linux during the first part of 2013: Product Enhancement Advisory – RHEA-2012:1101-2 * Daylight Saving Time will be interrupted during the holy month of Ramadan in Morocco (that is July 20 – August 19, 2012