Tz

Time zone support for Elixir.

The Elixir standard library does not ship with a time zone database. As a result, the functions in the DateTime module can, by default, only operate on datetimes in the UTC time zone. Alternatively (and deliberately), the standard library relies on third-party libraries, such as tz, to bring in time zone support and deal with datetimes in other time zones than UTC.

The tz library relies on the time zone database maintained by IANA. As of version 0.3.0, tz uses version tzdata2019c of the IANA time zone database.

Usage

To use the tz database, either configure it via configuration:

config :elixir, :time_zone_database, Tz.TimeZoneDatabase

or by calling Calendar.put_time_zone_database/1:

Calendar.put_time_zone_database(Tz.TimeZoneDatabase)

or by passing the module name Tz.TimeZoneDatabase directly to the functions that need a time zone database:

DateTime.now("America/Sao_Paulo", Tz.TimeZoneDatabase)

Refer to the DateTime API for more details about handling datetimes with time zones.

Installation

Add tz for Elixir as a dependency in your mix.exs file:

def deps do
  [
    {:tz, "~> 0.3.0"}
  ]
end

HexDocs

HexDocs documentation can be found at https://hexdocs.pm/tz.