Strange historic timezone in Nigeria

[Paul Eggert]

Jesper Norgaard Welen <jnorgard at prodigy.net.mx> writes:

> Zone	Africa/Niamey	 0:08:28 -	LMT	1912
> 			-1:00	-	WAT	1934 Feb 26
> 			 0:00	-	GMT	1960
> 			 1:00	-	WAT
>
> Since the timezone abbreviation 'WAT' is the same seemingly for both GMT-1
> and GMT+1, my suspicion is that it should rather be
>
> Zone	Africa/Niamey	 0:08:28 -	LMT	1912
> 			 1:00	-	WAT	1934 Feb 26
> 			 0:00	-	GMT	1960
> 			 1:00	-	WAT

No, "WAT" is used for both -0100 and +0100.  Very strange, but there's
commentary about this issue in the "africa" file.  The offsets
faithfully reflect Shanks (the "WAT" is my own invention).