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Performance considerations

To design your application for optimal performance, follow these recommendations:

  • The performance of the GetSupported() function is a factor of the size of the timezone database. If you add many entries to this database, the GetSupported() function will take much longer. Currently the database is 36KB, and it stores information on 78 timezones.
  • The transition rules stored in the database currently are for the period of World War II to present. Going back further in time will result in larger and slower performing database and timezone operations.