[tz] Conrad Maldives Rangali Island resort

[Paul Eggert]

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.