timere 0.2.2 · OCaml Package

type tz_info = [

| `Tz_only of Time_zone.t
| `Tz_offset_s_only of int
| `Tz_and_tz_offset_s of Time_zone.t * int

]

val tz_offset_s_of_tz_info : tz_info -> int option

type t = private {

year : int;
month : month;
day : int;
hour : int;
minute : int;
second : int;
ns : int;
tz_info : tz_info;

}

val make : 
  ?tz:Time_zone.t ->
  ?ns:int ->
  ?frac:float ->
  year:int ->
  month:month ->
  day:int ->
  hour:int ->
  minute:int ->
  second:int ->
  unit ->
  t option

Constructs a date time providing only a time zone (defaults to local time zone).

Nanosecond used is the addition of ns and frac * number of nanoseconds in one second.

A precise offset is inferred if possible.

Note that this may yield a ambiguous date time if the time zone has varying offsets, e.g. DST.

See make_precise for the most precise construction.

val make_exn : 
  ?tz:Time_zone.t ->
  ?ns:int ->
  ?frac:float ->
  year:int ->
  month:month ->
  day:int ->
  hour:int ->
  minute:int ->
  second:int ->
  unit ->
  t

raises Invalid_argument
if make fails

val make_precise : 
  ?tz:Time_zone.t ->
  ?ns:int ->
  ?frac:float ->
  year:int ->
  month:month ->
  day:int ->
  hour:int ->
  minute:int ->
  second:int ->
  tz_offset_s:tz_offset_s ->
  unit ->
  t option

Constructs a date time providing time zone offset in seconds, and optionally a time zone.

Nanosecond used is the addition of ns and frac * number of nanoseconds in one second.

If a time zone is provided, then the offset is checked against the time zone record to make sure the time zone does use said offset for the particular date time.

val make_precise_exn : 
  ?tz:Time_zone.t ->
  ?ns:int ->
  ?frac:float ->
  year:int ->
  month:month ->
  day:int ->
  hour:int ->
  minute:int ->
  second:int ->
  tz_offset_s:tz_offset_s ->
  unit ->
  t

raises Invalid_argument
if make_precise fails

type 'a local_result = [

| `Single of 'a
| `Ambiguous of 'a * 'a

]

Result for when a local date time may be involved, e.g. using a date time with no precise time zone offset attached.

`Single is yielded when the date time maps to exactly one 'a. This happens when date time carries an accurate offset, or when the date time is not affected by any offset shifts (thus an accurate offset can be inferred).
`Ambiguous is yielded when date time maps to more than one (exactly two) 'a. This happens when DST ends and "goes back an hour" for instance.

val to_timestamp : t -> timestamp local_result

val to_timestamp_single : t -> timestamp

raises Invalid_argument
if to_timestamp does not yield a `Single result

val to_timestamp_float : t -> float local_result

val to_timestamp_float_single : t -> float

raises Invalid_argument
if to_timestamp_precise does not yield a `Single result

val min_of_local_result : 'a local_result -> 'a

val max_of_local_result : 'a local_result -> 'a

val of_timestamp : ?tz_of_date_time:Time_zone.t -> timestamp -> t option

val of_timestamp_float : ?tz_of_date_time:Time_zone.t -> float -> t option

val equal : t -> t -> bool

val min : t

val max : t

val now : ?tz_of_date_time:Time_zone.t -> unit -> t

val to_weekday : t -> weekday

exception Date_time_cannot_deduce_tz_offset_s of t

val pp : ?format:string -> unit -> Format.formatter -> t -> unit

Pretty printing for date time.

Default format string:

{year} {mon:Xxx} {mday:0X} {hour:0X}:{min:0X}:{sec:0X} \
{tzoff-sign}{tzoff-hour:0X}:{tzoff-min:0X}:{tzoff-sec:0X}

Format string specification:

{{               literal {
{year}           year
{mon:Xxx}        abbreviated month name (e.g. Jan), casing of 'x' controls the casing
{mon:Xx*}        full month name (e.g. January), casing of first 'x' controls casing of first letter,
                 casing of second 'x' controls casing of following letters
{mon:cX}         month in number form (e.g. 01) character 'c' before 'X' is used for padding
                 (leave out character for no padding)
{mday:cX}        month day (e.g.  1) character 'c' before 'X' is used for padding
                 (leave out character for no padding)
{wday:Xxx}       abbreviated weekday name (e.g. Sun), the casing of 'x' controls the casing
{wday:Xx*}       full weekday name (e.g. Sunday), casing of first 'x' controls casing of first letter,
                 casing of second 'x' controls casing of following letters
{hour:cX}        hour in 24-hour format, character 'c' before 'X' determines padding
                 (leave out character for no padding)
{12hour:cX}      hour in 12-hour format, character 'c' before 'X' determines padding
                 (leave out character for no padding)
{min:cX}         minute, character 'c' before 'X' determines padding
                 (leave out character for no padding)
{sec:cX}         second, character 'c' before 'X' determines padding
                 (leave out character for no padding)
{ns}             nanosecond
{sec-frac:N}     fraction of second (only digits)
                 N determines the number of digits to take after decimal point
                 result is rounded to closest fraction of said precision
{tzoff-sign}     time zone offset sign ('+' or '-')
                 raises Date_time_cannot_deduce_tz_offset_s if time zone offset cannot be calculated
{tzoff-hour:cX}  time zone offset hour, follows same padding rule as "{hour:cX}"
                 raises Date_time_cannot_deduce_tz_offset_s if time zone offset cannot be calculated
{tzoff-min:cX}   time zone offset minute, follows same padding rule as "{min:cX}"
                 raises Date_time_cannot_deduce_tz_offset_s if time zone offset cannot be calculated
{tzoff-sec:cX}   time zone offset second, follows same padding rule as "{sec:cX}"
                 raises Date_time_cannot_deduce_tz_offset_s if time zone offset cannot be calculated

val to_string : ?format:string -> t -> string option

String conversion using pp.

Returns None instead of raising exception when time zone offset cannot be deduced but required by the format string

val pp_rfc3339 : ?frac_s:int -> unit -> Format.formatter -> t -> unit

val pp_rfc3339_milli : Format.formatter -> t -> unit

val pp_rfc3339_micro : Format.formatter -> t -> unit

val pp_rfc3339_nano : Format.formatter -> t -> unit

val to_rfc3339 : ?frac_s:int -> t -> string option

Returns None if time zone offset cannot be deduced

val to_rfc3339_milli : t -> string option

val to_rfc3339_micro : t -> string option

val to_rfc3339_nano : t -> string option

val of_iso8601 : string -> (t, string) result

Parses a subset of ISO8601, up to 9 fractional digits for second (nanosecond precision)

If more than 9 fractional digits are provided, then only the first 9 digits are used, i.e. no rounding

val to_sexp : t -> CCSexp.t

val to_sexp_string : t -> string

val of_sexp : CCSexp.t -> (t, string) result

val of_sexp_string : string -> (t, string) result

val pp_sexp : Format.formatter -> t -> unit

package timere