# std::chrono::tzdb

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< cpp‎ | chrono

Defined in header `<chrono>` |  |
struct tzdb; |  | (since C++20)

The class `tzdb` represents a copy of the IANA time zone database. Users cannot construct a `tzdb` and can only obtain read-only access to one via the free functions std::chrono::get_tzdb_list and std::chrono::get_tzdb.

### Member objects

Member object | Description
`version` | A std::string that contains the version of the database
`zones` | A sorted std::vector<std::chrono::time_zone> containing description of time zones
`links` | A sorted std::vector<std::chrono::link> containing description of alternative names of time zones (links)
`leaps` | A sorted std::vector<std::chrono::leaps> containing description of leap seconds

### Member functions

locate_zone | locate a time zone with the given name (public member function)
current_zone | return the local time zone (public member function)

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