The dispute involved the upstream project's decision to merge time zones whose timestamps and DST transitions were alike since 1970, a process now known as the alike-since-1970 changes. When the upstream project proposed merging time zones, a lengthy and often heated discussion began and continued over the next several months. However, over the subsequent months, significant changes were introduced upstream that combined or merged time zones and resulted in a lot of controversy.
The GNU C Library (glibc) uses the tzdata package in order to make APIs such as strftime() work correctly, while applications such as /usr/bin/date make use of this information to print the local date.Ģ021 began slowly with the January release of the update tzdata 2021a, which supported time zone changes in South Sudan.
This data represents changes required by local government bodies or by time zone boundary changes, as well as changes to UTC offsets and DST. The tzdata package contains the data files documenting both current and historic transitions for various time zones around the world. Project contributors engaged in lively discussion over how to treat historical time zone data, and changes in some countries' daylight saving time (DST) start and end dates-including one announced with less than two weeks' notice-kept the maintainers busy. The past year-particularly the second half of 2021-was a busy one for the Time Zone Database ( tzdata) project, which provides Red Hat Enterprise Linux (RHEL) with data specific to the local time zone.
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