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Dates

Parsing

Parse a date and time from a string

Given the string "2008-05-06 13:29", parse it as a date representing 6th March, 2008 1:29:00pm in the local time zone.

clojure

(.. (SimpleDateFormat. "yyyy-MM-dd HH:mm")
(parse "2008-05-06 13:29"))

cpp C++/CLI .NET 2.0

DateTimeOffset^ dateTime = DateTimeOffset::Parse("2008-05-06 13:29");

// Use format specifiers to appropriately format string
// 1. Default culture
Console::WriteLine("{0}", dateTime->ToString("d MMMM, yyyy h:mm:sstt"));

// 2. Nominated culture
Console::WriteLine("{0}", dateTime->ToString("d MMMM, yyyy h:mm:sstt"), Globalization::CultureInfo::CreateSpecificCulture("en-us"));

cpp C++/CLI .NET 2.0

DateTimeOffset^ dateTime = DateTimeOffset::Parse("2008-05-06 13:29");

// Customize date/time string
Text::StringBuilder^ dsb = gcnew Text::StringBuilder(40);
dsb->Append(dateTime->ToString("%d"))->Append("th ")->Append(dateTime->ToString("MMMM, yyyy h:mm:ss"))->Append(dateTime->ToString("tt")->ToLower());

Console::WriteLine("{0}", dsb);

erlang

% AFAIK, no datetime-parsing library exists; 'parse_to_datetime' is a simplistic, problem-specific hack
LocalDateTime = erlang:universaltime_to_localtime(parse_to_datetime("2008-05-06 13:29:34")),

fantom

dt := DateTime.fromLocale("2008-05-06 13:29", "YYYY-MM-DD hh:mm")

fsharp

let dateTime = DateTimeOffset.Parse("2008-05-06 13:29")

// Use format specifiers to appropriately format string
// 1. Default culture
printfn "%s" (dateTime.ToString("d MMMM, yyyy h:mm:sstt"))

// 2. Nominated culture
Console.WriteLine("{0}", dateTime.ToString("d MMMM, yyyy h:mm:sstt"), Globalization.CultureInfo.CreateSpecificCulture("en-us"))

fsharp

let dateTime = DateTimeOffset.Parse("2008-05-06 13:29")

// Customize date/time string
let dsb = ((new StringBuilder(40)).Append(dateTime.ToString("%d")).Append("th ").Append(dateTime.ToString("MMMM, yyyy h:mm:ss")).Append(dateTime.ToString("tt").ToLower()))

printfn "%s" (dsb.ToString())

groovy

def date = new SimpleDateFormat("yyy-MM-dd HH:mm").parse("2008-05-06 13:29")

groovy

def date = Date.parse("yyy-MM-dd HH:mm", "2008-05-06 13:29")

java

DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm");
Date date = df.parse("2008-05-06 13:29");

java JodaTime

DateTimeFormatter fmt = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm");
DateTime dt = fmt.parseDateTime("2008-05-06 13:29");

ocaml

let s = "2008-05-06 13:29" in
let r = Str.regexp "\$[0-9][0-9][0-9][0-9]\$-\$[0-9][0-9]\$-\$[0-9][0-9]\$ \$[0-9][0-9]\$:\$[0-9][0-9]\$" in
assert (Str.string_match r s 0);
Unix.mktime { Unix.tm_sec = 0;
tm_min = int_of_string (Str.matched_group 5 s);
tm_hour = int_of_string (Str.matched_group 4 s);
tm_mday = int_of_string (Str.matched_group 3 s);
tm_mon = int_of_string (Str.matched_group 2 s) - 1;
tm_year = int_of_string (Str.matched_group 1 s) - 1900;
tm_wday = -1;
tm_yday = -1;
tm_isdst = true; (** Daylight time savings in effect *)
}

perl

#! /usr/bin/perl
# -*- Mode: CPerl -*-

use strict;
use POSIX;

# Given the string "2008-05-06 13:29", parse it as a date
# representing 6th March, 2008 1:29:00pm in the local time zone.

my $ds = "2008-05-06 13:29";

my $y;
my $m;
my $d;
my $hr;
my $mn;

print "Original: ",$ds,"\n";

if ( $ds =~ /(\d{4})-(\d{2})-(\d{2})\s+(\d{2}):(\d{2})/ ){
$y = $1 - 1900;
$m = $2;
$d = $3;
$hr = $4;
$mn = $5;

printf "Nominal: %s\n",
strftime("%e %B, %Y %l:%M:%S%P",0, $mn , $hr, $d, $m,$y);

my $eth = "";
if ( $d == 1 ){
$eth = "st";
} elsif ( $d == 2 ){
$eth = "nd";
} elsif ( $d == 3 ){
$eth = "rd";
} else {
$eth = "th";
}

printf "As required: %d%s %s\n",$d,$eth,
strftime("%B, %Y %l:%M:%S%P",0, $mn , $hr, $d, $m,$y);
}

#eos

perl 5.10+

# Shurely you mean 6th MAY? If not, oh well
use Time::Piece;

my $dt_str = '2008-05-06 13:29';
my $tp = Time::Piece->strptime( $dt_str, '%Y-%m-%d %H:%M');
print $tp,"\n";

php

echo date("jS F, Y g:i:sa", strtotime("2008-05-06 13:29")); // small version

python

import time
time.strptime("2008-05-06 13:29", "%Y-%m-%d %H:%M")

ruby

# With timezone info
puts Time.parse('2008-05-06 13:29')

scala

val date = new SimpleDateFormat("yyy-MM-dd HH:mm").parse("2008-05-06 13:29")

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