String to datetime in C#

Question

I have a string strdate="25/9/2014" here in dd/MM/yyyy format.I want to parse it in date time like below

DateTime dt;
            if (DateTime.TryParseExact(strDate, "dd/MM/yyyy", System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out dt))
            {
                dt = DateTime.Parse(strDate);
            }

            Console.WriteLine(dt);

But it can not parse.Please help me.

if try parse returns true - you already have dt and you dont need to Parse again ;) — Renatas M.
– Renatas M., Commented Sep 26, 2014 at 12:14

Matthew Watson · Accepted Answer · 2014-09-26 12:53:01Z

9

Two things:

1: Your string format should be "dd/M/yyyy" (a double MM will require two month digits; a single M will allow 1 or 2 month digits).

2: You are parsing the date string twice.

Change your code to:

DateTime dt;

if (DateTime.TryParseExact(strDate, "dd/M/yyyy", System.Globalization.CultureInfo.InvariantCulture, System.Globalization.DateTimeStyles.None, out dt))
{
    Console.WriteLine(dt.ToString("dd/M/yyyy"));
}
else
{
    Console.WriteLine("Can't parse it.");
}

[EDIT] Changed the Console.WriteLine() so that it outputs in the specific "dd/M/yyyy" format rather than using the local system locale.

edited Sep 26, 2014 at 12:53

answered Sep 26, 2014 at 12:15

Matthew Watson

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5 Comments

Joydip Over a year ago

Thanks I have tried your code.It gives me 9/25/2014.But Here in my string 25 is the day ,9 is the month.

Wyatt Earp Over a year ago

@Joydip That is just because the Console.WriteLine(dt.ToString()); (the .ToString() is implied) is defaulting to "mm/dd/yyyy" format. If you change it to Console.WriteLine(dt.ToString("dd/M/yyyy")); it should display as you expect.

Arie Over a year ago

@WyattEarp Console.WriteLine(dt.ToString()); isn't exactly "defaulting" to "mm/dd/yyyy" - the result depends on your CurrentCulture (in this case it seems to be en-US)

Wyatt Earp Over a year ago

@Arie In this case it is, that's all I meant. You are correct though.

Arie Over a year ago

@WyattEarp I'm just overreacting because of my past mistakes :) There were a few cases when the difference between "default" and "localized" bit me hard (parsing numbers and dates, sorting lists, comparing strings, reading from serial ports...)

Sourav 'Abhi' Mitra · Accepted Answer · 2014-09-26 12:15:24Z

2

TryParseExact needs to match exactly.

In your case try dd/M/yyyy as your input is

25/9/2014
dd/M/yyyy

answered Sep 26, 2014 at 12:15

Sourav 'Abhi' Mitra

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Comments

user4079229 · Accepted Answer · 2014-09-26 12:16:57Z

0

Change "dd/MM/yyyy" to "dd/M/yyyy"

because

TryParseExact looks for Exact Match

answered Sep 26, 2014 at 12:16

user4079229

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