[Question] Any plan to port PhoneNumberToTimeZonesMapper? about libphonenumber HOT 2 OPEN

Cool! PRs are always welcome! I don't have a ton of spare time to do this myself, but you should probably grab the binary data from the C project - the Java libphonenumber project data is encoded in Java's Object[Input|Output] format. From that, it's just generating whatever protobuf structures (I'm assuming it's protobufs) that are required to extract the necessary data.

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@ttacon there is no *.proto files for timezones. I have only found this map:
https://github.com/googlei18n/libphonenumber/blob/3ea1359a3e41bbb0a90ec253c00ba41712fb736b/resources/timezones/map_data.txt

I can see you generated the *.pb.go files from:
https://github.com/googlei18n/libphonenumber/blob/3ea1359a3e41bbb0a90ec253c00ba41712fb736b/resources/phonemetadata.proto
https://github.com/googlei18n/libphonenumber/blob/3ea1359a3e41bbb0a90ec253c00ba41712fb736b/resources/phonenumber.proto

but I would need to implement a map like this one:
https://github.com/ttacon/libphonenumber/blob/master/countrycodetoregionmap.go

unless there are reasons not to do so

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