A bare "%s" in a zone line such as ... Zone Africa/Windhoek 2:00 Namibia %s ...means that the abbreviations are completely specified in the Rule lines being used. In this case, the operative Rule lines are... Rule Namibia 1994 only - Mar 21 0:00 -1:00 WAT Rule Namibia 1994 2017 - Sep Sun>=1 2:00 0 CAT Rule Namibia 1995 2017 - Apr Sun>=1 2:00 -1:00 WAT ...and so the abbreviations "WAT" and "CAT" are the result. @dashdashado On Thu, Jun 24, 2021 at 4:09 AM vaibhav shrivastava via tz <tz@iana.org> wrote:

Please check FORMAT is marked as %s for these 2 timezone Africa/Windhoek & America/Belize

Zone Africa/Windhoek 2:00 Namibia %s

Same for

America/Belize -6:00 Belize %s

Regards, Vaibhav