NATO Time Zone codes

[Alex LIVINGSTON]

At 00:44 +0000 2001-02-12, Markus Kuhn wrote:
>I though that was already done by NATO long ago (but apparently now
>abolished in favour of using Zulu/UTC everywhere):
>
>Y  = UTC-01:00
>YZ = UTC-00:30
>Z  = UTC
>ZA = UTC+00:30
>A  = UTC+01:00
>AB = UTC+01:30
>B  = UTC+02:00

What about the contemptible UTC+12:45 of the Chatham Islands, and 
UTC+05:45 of Nepal? And what about UTC+13:00 (Tonga), UTC+13:45 (the 
Chatham Islands in Summer), and UTC+14:00 (far eastern Kiribati)?

--Alex