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How to add a date three weeks from now using DateTime C# [duplicate]

This question already has answers here:
Add 1 week to current date
(3 answers)
Why is there no DateTime.AddWeeks(), and how can I get a DateTime object for 52 weeks ago?
(9 answers)
Are adding weeks, months or years to a date/time independent from time zone?
(1 answer)
Closed 11 months ago.
I am trying to add a due date for a library app. I got today's date & time using
DateTime today = DateTime.Today;
Any suggestions on how to add three weeks to that at the time it is being checked out?

var threeWeeksFromToday = DateTime.Today.AddDays(3*7);

Remove seconds from date time object in c# [duplicate]

This question already has answers here:
How to exclude seconds from DateTime.ToString()
(7 answers)
Closed 6 years ago.
I have date time object and it is stored in created datetime. I want to remove the seconds from the datetime object.
My date time object is returning value like this
4/6/2016 5:32:00 PM
I want to remove the seconds from this and i want the output like below,
4/6/2016 5:32 PM
can anyone tell how to do this?

To get the wanted output, try yourDateTimeObject.ToString("g");
Here is some information DateTime.ToString(..), which i will recommend for your needs.
Edit:
If you want it to be culture-independent, and always show the same use:
yourDateTimeObject.ToString("d/M/yyyy h:mm tt");

DateTime.date give me a full Date why? [duplicate]

This question already has answers here:
how to give format DateTime.Date?
(7 answers)
Closed 7 years ago.
I need only the date from a DateTime class so I use DateTime.Date,
but it gives me a Full DateTime format, like this:
DateTime date = new DateTime();
date.Date
give me:
+ date {12/01/2016 00:00:00} System.DateTime
I only need the:
date {12/01/2016}

12/01/2016 00:00:00 is the same as 12/01/2016 as a value.
If you wanna get 12/01/2016 as a string representation, you can use .ToString method like;
var str = date.Date.ToString("dd/MM/yyyy", CultureInfo.InvariantCulture);
If you wanna get this 12/01/2016 as a DateTime, simply you can't. A DateTime instance always has date and time part. That's why you see it as 12/01/2016 00:00:00 on debugger even if you set it's time part to midnight.

how to remove Time from MVC5 DateTime [duplicate]

This question already has answers here:
Display only date and no time
(11 answers)
Closed 8 years ago.
I`m new to asp.Net mvc5. I have a problem with DateTime formatting. I need to remove time from Date.
20/01/2015 12:00:00
Needs to be like this :
20/01/2015
I Tried this :
var dateOnly = date1.Date;
But it still get the time with date.

You'll always have some time in a DateTimeobject. But you can format the string output to have what you need. There is a difference between the inner data hold be the C# object (ie with time, even if 00:00) and the way you print it on screen.
Try:
var dateAsString = date1.ToString("dd/MM/yyyy")
Everything is in the MSDN Documentation.

If you want to format the date in a string, you can specify a custom format which excludes the time:
DateTime date = DateTime.Now;
string dateString = date.ToString("dd/MM/yyyy");
By default, .NET will include the time too when converting a DateTime object to a string.

Convert DateTime to long value [duplicate]

This question already has answers here:
Convert DateTime to long and also the other way around
(9 answers)
Closed 9 years ago.
I have the following format in my sql row (DateTime datatype):
00:04:01.
I load it into my program and insert it into a DateTime object. Let's call this object "date".
How can I convert "date" into a long value?

Use DateTime.Ticks property to get long value which represents date and time of your DateTime object.

You can use DateTime.Ticks Property
Gets the number of ticks that represent the date and time of this
instance.