M-x time-zones gives you the ability to check the time for
any city in the world.

This package would not be possible without these data sources:

- Countries, states, and cities database:
  https://github.com/dr5hn/countries-states-cities-database

- POSIX TZ database for Windows timezone support:
  https://github.com/nayarsystems/posix_tz_db

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