Polars.TzTz.t represents the time zone type used by polars. Since the underlyingx type is statically generated at compile-time, it is not guaranteed to always match tz values which are dynamically queries from the tz database at runtime.
The underlying Rust type is chrono_tz::Tz (https://docs.rs/chrono-tz/latest/chrono_tz/)
include Ppx_compare_lib.Comparable.S with type t := tval compare : t Base__Ppx_compare_lib.compareval all : unit -> t listval to_string : t -> stringval parse : string -> t optionval of_time_zone : Time_ns_unix.Zone.t -> t optionval to_time_zone : t -> Time_ns_unix.Zone.t optionval pp : Stdlib.Format.formatter -> t -> unit