package timedesc

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Importing and exporting

package timedesc

timedesc
- Timedesc
  - Date
    
    ISO_ord_date
    
    ISO_week_date
    
    Ymd_date
  - ISO_ord_date_time
  - ISO_week_date_time
  - Interval
  - Span
    
    For_human
  - Time
  - Time_zone
    
    Db
    
    Raw
    
    Sexp
    
    JSON
    
    Raw
    
    Sexp
  - Time_zone_info
  - Timestamp
  - Utils
timedesc.tzdb.full
- Timedesc_tzdb
timedesc.tzdb.none
- Timedesc_tzdb
timedesc.tzlocal.none
- Timedesc_tzlocal
timedesc.tzlocal.unix
- Timedesc_tzlocal
timedesc.tzlocal.utc
- Timedesc_tzlocal

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type t

val make : string -> t option

Makes a time zone from name.

Naming follows the convention used in /usr/share/zoneinfo/posix/ distributed on Linux, e.g. "Australia/Sydney".

See available_time_zones for checking usable time zone names at runtime.

Alternatively, if you are using timedesc.tzdb.full (the default implementation for timedesc.tzdb), then you can also see available-time-zones.txt for available time zones.

make handles names with "UTC" prefix specially, following holds regardless of DB backend chosen

UTC is alway interpreted as utc
UTC+/-offset is always interpreted as call to make_offset_only with the provided signed offset
- e.g. "UTC+1:30" is equivalent to make_offset_only (Span.For_human.make_exn ~hours:1 ~minutes:30 ())
- offset may be single/double digit hour, optionally followed by colon and single/double digit minute

val make_exn : string -> t

raises Invalid_argument
if make fails

val name : t -> string

val utc : t

val local : unit -> t option

val local_exn : unit -> t

raises Invalid_argument
when local returns None

val equal : t -> t -> bool

val available_time_zones : string list

val make_offset_only : Span.t -> t option

This is mainly used for when you only have an offset to work with, and you don't need to do any accurate search over time zones.

One use of this is to create a time zone for to_string functions.

Returns None when offset exceeds 24 hours in size.

val make_offset_only_exn : Span.t -> t

val to_fixed_offset_from_utc : t -> Span.t option

Importing and exporting

type entry = {

is_dst : bool;
offset : int;

}

module Raw : sig ... end

module Sexp : sig ... end

module JSON : sig ... end

module Db : sig ... end