Each linux distribution provides their own, but they can be easily created from the source which can be found here:
crichton: "I presume you are running windows on your "PC" and I am 100% sure when you installed windows on your PC your operating system didn't know about the Samoa timezone changes but you did a windows update or alike which then included the changes."
"As I said windows wasn't didn't have the new Samoa timezone support when installed and you used that and you are lucky that the timezone support was upgraded in that."
Not really relevant. When I checked international times in my PC I went to a reliable web site. There's no reason why I can't do the same on my Android phone. It's not a big issue.
Thanks again for clarification.