# Module Netdate

    module Netdate: sig .. end

Support for common date/time parsing and formatting. Many routines refer to the epoch, which for Unix is 00:00:00 UTC, January 1, 1970.

`type ``t = {`

`` | `year : `int`;` | `(*` | `complete year` | `*)`
`` | `month : `int`;` | `(*` | `1..12` | `*)`
`` | `day : `int`;` | `(*` | `1..31` | `*)`
`` | `hour : `int`;`
`` | `minute : `int`;`
`` | `second : `int`;`
`` | `zone : `int`;` | `(*` | `in minutes; 60 = UTC+0100` | `*)`
`` | `week_day : `int`;` | `(*` | `0 = sunday; -1 if not given` | `*)`

}

    val localzone : int

The offset in minutes for the local time zone from the UTC

    val create : ?zone:int -> float -> t

Convert the time (seconds since the epoch) to a date/time record

    val parse : string -> t

Parse a string and return a date/time record

    val since_epoch : t -> float

Convert a date/time record into the time (seconds since the epoch)

    val parse_epoch : string -> float

Parse a string and return the time (seconds since the epoch

    val format_to : Netchannels.out_obj_channel -> fmt:string -> t -> unit

Format a date/time record according to the format string and outputs the resulting string to the channel.

The format string consists of zero or more conversion specifications and ordinary characters. All ordinary characters are output directly to the channel. A conversion specification consists of the '%' character and one other character.

The conversion specifications are:

- `%A`: full weekday name.
- `%a`: abbreviated weekday name.
- `%B`: full month name.
- `%b`: abbreviated month name.
- `%C`: (year / 100) as an integer; single digits are preceded by a zero.
- `%c`: equivalent to `"%a %b %e %T %Y"`.
- `%D`: equivalent to `"%m/%d/%y"`.
- `%d`: day of the month as an integer (01-31); single digits are preceded by a zero.
- `%e`: day of the month as an integer (1-31).
- `%H`: hour (24-hour clock) as an integer (00-23).
- `%h`: the same as %b.
- `%I`: hour (12-hour clock) as an integer (01-12).
- `%j`: day of the year as an integer (001-366).
- `%k`: hour (24-hour clock) as an integer (0-23); single digits are preceded by a blank.
- `%l`: hour (12-hour clock) as an integer (1-12); single digits are preceded by a blank.
- `%M`: minute as an integer (00-59).
- `%m`: month as an integer (01-12).
- `%n`: a newline.
- `%p`: either "AM" or "PM" as appropriate.
- `%P`: either "am" or "pm" as appropriate.
- `%R`: equivalent to `"%H:%M"`.
- `%r`: equivalent to `"%I:%M:%S %p"`.
- `%S`: second as an integer (00-60).
- `%T`: equivalent to `"%H:%M:%S"`.
- `%t`: a tab.
- `%U`: week number of the year (Sunday as the first day of the week) as an integer (00-53).
- `%u` weekday (Monday as the first day of the week) as an integer (1-7).
- `%w`: weekday (Sunday as the first day of the week) as an integer (0-6).
- `%X`: representation of the time.
- `%x`: representation of the date.
- `%Y`: year with century as an integer.
- `%y`: year without century as an integer (00-99).
- `%z`: time zone offset from UTC; a leading plus sign stands for east of UTC, a minus sign for west of UTC, hours and minutes follow with two digits each and no delimiter between them (common form for RFC 822 date headers).
- `%%`: a `%' character.

    val format : fmt:string -> t -> string

Format a date/time record as a string

    val mk_mail_date : ?zone:int -> float -> string

Convert the time (seconds since the epoch) to a date string that conforms to RFC 1123 (which updates RFC 822).

Example: `"Sun, 06 Nov 1994 08:49:37 -0500"`.

    val mk_usenet_date : ?zone:int -> float -> string

Convert the time (seconds since the epoch) to a date string that conforms to RFC 1036 (which obsoletes RFC 850).

Example: `"Sunday, 06-Nov-94 08:49:37 -0500"`.

Note that this format has only two digits for the year.