CODEWITHSUNDEEP
c#datetime
nmathur
nmathur

Reputation: 433

Convert AM/PM time to 24 hours format?

I need to convert 12 hours format time (am/pm) to 24 hours format time, e.g. 01:00 PM to 13:00 using C#. How can I convert it?

Upvotes: 29

Views: 146580

Answers (11)

Arsman Ahmad
Arsman Ahmad

Reputation: 2211

Here what I find:

string timeIn12Hour = "07:35:50PM";
DateTime parsedTime = DateTime.ParseExact(timeIn12Hour, "hh:mm:sstt", null);
string timeIn24Hours = parsedTime.ToString("HH:mm:ss");   // 19:35:50

Upvotes: 1

Ricardo O.
Ricardo O.

Reputation: 1

using System;

public class Program
{
    public static string ConvertFrom12To24HoursFormat(string inputTime)
    {
        return DateTime.Parse(inputTime).ToString("hh:mm");
    }

    public static void Main(string[] args)
    {
        Console.WriteLine(ConvertFrom12To24HoursFormat("01:05 pm"));
    }
}

Upvotes: 0

Atno
Atno

Reputation: 416

using System;

class Solution
{
    static string timeConversion(string s)
    {
        return DateTime.Parse(s).ToString("HH:mm");
    }

    static void Main(string[] args)
    {
        Console.WriteLine(timeConversion("01:00 PM"));
        Console.Read();
    }
}

Upvotes: 1

Praveen Gopal
Praveen Gopal

Reputation: 539

You can use like this:

string date = "";

date = DateTime.ParseExact("01:00 PM" , "h:mm tt", CultureInfo.InvariantCulture).ToString("HH:mm");

h: 12 hours

mm: mins

tt: PM/AM

HH:24 hours

Upvotes: 6

Pratyush
Pratyush

Reputation: 535

Convert a string to a DateTime, you could try

    DateTime timeValue = Convert.ToDateTime("01:00 PM");
    Console.WriteLine(timeValue.ToString("HH:mm"));

Upvotes: 15

okrumnow
okrumnow

Reputation: 2416

You may use Cultures to parse and format your string, eg

var cultureSource = new CultureInfo("en-US", false);
var cultureDest = new CultureInfo("de-DE", false);

var source = "01:00 pm";

var dt = DateTime.Parse(source, cultureSource);
Console.WriteLine(dt.ToString("t", cultureDest));

This prints 13:00

Upvotes: -1

Shivkant
Shivkant

Reputation: 4619

Go through following code to convert the DateTime from 12 hrs to 24 hours.

string currentDateString = DateTime.Now.ToString("dd-MMM-yyyy h:mm tt");
DateTime currentDate = Convert.ToDateTime(currentDateString);
Console.WriteLine("String Current Date: " + currentDateString);
Console.WriteLine("Converted Date: " + currentDate.ToString("dd-MMM-yyyy HH:mm"));

Whenever you want the time should be displayed in24 hours use format "HH"

You can refer following link for further details: Custom Date and Time Format Strings

Upvotes: 6

Marco
Marco

Reputation: 57573

If you need to convert a string to a DateTime you could try

DateTime dt = DateTime.Parse("01:00 PM"); // No error checking

or (with error checking)

DateTime dt;
bool res = DateTime.TryParse("01:00 PM", out dt);

Variable dt contains your datetime, so you can write it

dt.ToString("HH:mm");

Last one works for every DateTime var you have, so if you still have a DateTime, you can write it out in this way.

Upvotes: 40

npinti
npinti

Reputation: 52185

You can use the ParseExact() method to obtain a DateTime object. You can then use the ToString() method of that DateTime object to convert the string to what ever you need as shown here.

Upvotes: 0

Haris Hasan
Haris Hasan

Reputation: 30097

int hour = your hour value;
int min = your minute value;
String ampm = your am/pm value;

hour = ampm == "AM" ? hour : (hour % 12) + 12; //convert 12-hour time to 24-hour

var dateTime = new DateTime(0,0,0, hour, min, 0);
var timeString = dateTime.ToString("HH:mm");

Upvotes: 6

bobbymcr
bobbymcr

Reputation: 24167

You'll want to become familiar with Custom Date and Time Format Strings.

DateTime localTime = DateTime.Now;

// 24 hour format -- use 'H' or 'HH'
string timeString24Hour = localTime.ToString("HH:mm", CultureInfo.CurrentCulture);

Upvotes: 19

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