This
time zone was used as
standard time in
New Zealand and
Norfolk Island. On November 2, 1868, New Zealand officially adopted a standard time to be observed nationally, and was perhaps the first country to do so. It was based on the longitude 172° 30' East of
Greenwich, that was 11 hours 30 minutes ahead of
Greenwich Mean Time. This standard was known as
New Zealand Mean Time (
NZMT). New Zealand changed from NZMT to New Zealand Standard Time (NZST) as
UTC+12:00 in 1946 (after using this time zone as a
daylight saving time since 1928, including permanent daylight saving from 1941). It was officially changed to 12 hours in advance of UTC in 1946. Norfolk Island's standard time (
NFT) was on UTC+11:30 until 4 October 2015, when it was changed to
UTC+11:00. ==See also==