[tz] Conrad Maldives Rangali Island resort

[Paul.Koning at dell.com]

> On Jan 18, 2019, at 7:35 PM, Paul Eggert <eggert at cs.ucla.edu> wrote:
> 
> On 1/18/19 3:39 PM, Deborah Goldsmith via tz wrote:
>> It seems like the real problem here is gathering the data, and the number of new zones. I don’t think there would be any harm in adding time zones for these resorts.
> 
> It's notoriously hard to get reliable data for private time zones, and I'd rather not try. It's painful enough keeping the public time zone info up-to-date. If there's a real call for this data we could put it into 'backzone' or a similar file like that, but I don't want us to worry about maintaining it.
> 
>> An alternative to adding one zone per resort could be to have Indian/Maldives+30, Indian/Maldives+60, and Indian/Maldives+90.
> There are already generic TZ settings like TZ='<+06>-6' and TZ='Etc/GMT-6' that support that sort of usage, so we shouldn't need to add specific tzdb entries for it.

It sounds like we'd need some Etc/GMT-630 (or something similar) for "generic half hour offset" cases.

	paul