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Suppose I have the value 6/22/2009 10:00:00 AM. How do I get only 10:00 Am from this date time.
You have many options for this:
DateTime dt = DateTime.Parse("6/22/2009 07:00:00 AM");
dt.ToString("HH:mm"); // 07:00 // 24 hour clock // hour is always 2 digits
dt.ToString("hh:mm tt"); // 07:00 AM // 12 hour clock // hour is always 2 digits
dt.ToString("H:mm"); // 7:00 // 24 hour clock
dt.ToString("h:mm tt"); // 7:00 AM // 12 hour clock
Helpful Link:
DateTime.ToString() Patterns
From a DateTime, you can use .TimeOfDay - but that gives you a TimeSpan representing the time into the day (10 hours).
There is only DateTime type in C# and it consist of both the date and time portion. If you don't care about the Date portion of DateTime, set it to default value like this:
DateTime myTime = default(DateTime).Add(myDateTime.TimeOfDay)
This way you can be consistent across all versions of .NET, even if Microsoft decides to change the base date to something else than 1/1/0001.
You might want to look into the DateTime.ToShortTimeString() method.
Also, there many other methods and properties on the DateTime object that can help you in formating the date or time in any way you like. Just take a look at the documentation.
Try this:
TimeSpan TodayTime = DateTime.Now.TimeOfDay;
DateTime now = DateTime.Now;
now.ToLongDateString(); // Wednesday, January 2, 2019
now.ToLongTimeString(); // 2:33:59 PM
now.ToShortDateString(); // 1/2/2019
now.ToShortTimeString(); // 2:16 PM
now.ToString(); // 1/2/2019 2:33:59 PM
There are different ways to do so. You can use DateTime.Now.ToLongTimeString() which
returns only the time in string format.
You can simply write
string time = dateTimeObect.ToString("HH:mm");
You can use this
lblTime.Text = DateTime.Now.TimeOfDay.ToString();
It is realtime with milliseconds value and it sets to time only.
This works for me. I discovered it when I had to work with DateTime.Date to get only the date part.
var wholeDate = DateTime.Parse("6/22/2009 10:00:00 AM");
var time = wholeDate - wholeDate.Date;
You can use ToString("T") for long time or ToString("t") for short time.
If you're looking to compare times, and not the dates, you could just have a standard comparison date, or match to the date you're using, as in...
DateTime time = DateTime.Parse("6/22/2009 10:00AM");
DateTime compare = DateTime.Parse(time.ToShortDateString() + " 2:00PM");
bool greater = (time > compare);
There may be better ways to to this, but keeps your dates matching.
if you are using gridview then you can show only the time with DataFormatString="{0:t}"
example:
By bind the value:-
<asp:Label ID="lblreg" runat="server" Text='<%#Eval("Registration_Time ", "{0:t}") %>'></asp:Label>
By bound filed:-
<asp:BoundField DataField=" Registration_Time" HeaderText="Brithday" SortExpression=" Registration Time " DataFormatString="{0:t}"/>
You need to account for DateTime Kind too.
public static DateTime GetTime(this DateTime d)
{
return new DateTime(d.TimeOfDay.Ticks, d.Kind);
}
Related
I have a DateTime property for which I've only set the time:
OpenHour = DateTimeOffset.ParseExact("12:00:00 AM", "hh:mm:ss tt", CultureInfo.InvariantCulture)
But the day has also been saved as the day I've saved this property value.
I only wanted to set the time without the day so that it would be the same time every day.
Is there a way to do this ? Or do I need to create as CronJob to update every date's day to today's day ?
Edit
I'm not trying to create a time only value but know which way is best between creating a Cron Job to update the day of the time every day or if there's a better way.
And I tried to save it as strings but I needed to change it to DateTime to be able to use OrderBy when querying the place's list of hours and I've tried with strings it wasn't working.
Thank you for your help
It is not possible to save "just the time" as a DateTime object.
A DateTime object actually stores the current time as a single integer, and then when you see the result it is filtered through a certain timezone and format.
"The time component of a DateTimeOffset value is measured in 100-nanosecond units called ticks, and a particular date is the number of ticks since 12:00 midnight, January 1, 0001 A.D. (C.E.) in the GregorianCalendar calendar. " *(source) https://learn.microsoft.com/en-us/dotnet/api/system.datetimeoffset?view=net-5.0
If you want to avoid having to update it every day you could store it as a string representing the time and then have a method to automatically parse that time into todays date into a newly instantiated DateTime object.
string timeOfDay = DateTime.Now.ToString("hh:mm tt");
static DateTime TodayAtTime(string timeOfDay)
{
string calendarDay = DateTime.Now.ToString("MM/dd/yyyy ");
return DateTime.Parse(calendarDay + timeOfDay);
}
DateTime todayAtTime = TodayAtTime(timeOfDay);
Console.WriteLine(todayAtTime.ToString("hh:mm tt MM/dd/yyyy"));
Console.WriteLine(todayAtTime.ToString("dddd, dd MMMM yyyy HH:mm:ss"));
Using c#, I want to compare the current week-to-date to the same period last week-to-date. For example, if today is Wednesday, and if the first day of the week is Sunday, then I want to compare totals for Sunday – Tuesday of this week against Sunday – Tuesday of last week. I’m not counting Wednesday because I don’t have a full day of data until midnight the same day.
The same applies to comparing this mtd to the same number of days last month, and last year. For example, if the current date is June 19th, I want to compare the data from May 1-18th of last month as well as January 1 – June 18th of last year against January 1 – June 18th of this year.
The variables I’m trying to use look like this:
//Current dates
DateTime currentDte = DateTime.Now;
DateTime beginWeek = DateTime.Now.StartOfWeek(DayOfWeek.Sunday);
DateTime beginMonth = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1);
DateTime beginYear = new DateTime(DateTime.Now.Year, 1, 1);
//Historical dates
DateTime lastWeekToDate = DateTime.Now.StartOfWeek(DayOfWeek.Sunday - (7 - (int)DateTime.Now.DayOfWeek));
DateTime lastMonthToDate =
DateTime lastYearToDate =
As you can see I figured out the current dates and can loop through them to get the wtd, mtd, and ytd data I need. And I managed to figure out how to get the last week-to-date I need.
But I don’t know how to get the lastMonthToDate and lastYearToDate dates I need. I’ve tried everything I can think of. I’ve read date documentation until my eyes hurt, and still I come up with goose eggs. Can anyone offer any suggestions?
If I understand your question correctly, you just need to use AddMonths and AddYears.
DateTime lastMonthToDate = beginMonth.AddMonths(-1);
DateTime lastYearToDate = beginYear.AddYears(-1);
EDIT
Based your comment - it looks like you want the to subtract months/years from the current date in which case it would be
DateTime lastMonthToDate = currentDte.AddMonths(-1);
DateTime lastYearToDate = currentDte.AddYears(-1);
If it's the time of day that's throwing you off, just use the date part DateTime.Now.Date.AddMonths(-1)
Based on the feedback I received from Zeph, I was able to get the beginning of last year using this code:
DateTime startDate = beginYear.AddYears(-1);
Now I'm able to tally all of the ytd data I need based on the interval dates. Thank you very much!
I have been given a task to get future date. I mean if today is 1/1/2016 (1st Jan,2016) and when i add 12 months to it then normally it gives 1/1/2017 if i do like this code :
dateTimeObj="1/1/2016"
string futureDate=dateTimeObj.AddMonth(12);
Now this future date will give 1/1/2017 using this code but i have been asked to get when we add 12 months then it must give 12/31/2016 (31 dec,2016) (not 1/1/2017)
How to achieve this ? Is there any inbuilt function to do this, If not then how to do it programtically?
Note: The software on which i am coding is for accounts, they need the date this way only.
I think you should do this
dateTimeObj.AddYears(1).AddDays(-1);
I think there is no special Feature. Just so something like this:
date.AddMonths(12).AddDays(-1);
best regards
When adding 12 months to today, the expected result is same date in next year. So what you have to do is subtract a timespan of one day from it. You can try the above methods in the comments or you can follow this.
This is giving the expected result as 12-31-2016
var dateTimeString = "1/1/2016";
DateTime dateTimeObj = DateTime.Parse(dateTimeString);
DateTime futureDate = dateTimeObj.AddMonths(12).Subtract(TimeSpan.FromDays(1));
Console.WriteLine(futureDate.ToString("MM/dd/yyyy"));
Console.ReadLine();
I am using DateTime.Today.
Now I'm not sure if the date is from the beginning of the day or the end of the day.
This is what DateTime.Today returns : {11-3-2014 0:00:00}
MSDN states the following: "An object that is set to today's date, with the time component set to 00:00:00."
This means that a DateTime object is created with today's date at the absolute start of the day hence 00:00:00.
You can check if it is the start of the day by using the AddHour() method of the DateTime class.
DateTime d = DateTime.Today;
//AddHours, AddMinutes or AddSeconds
d = d.AddHours(1);
if (d.Date != DateTime.Today.Date)
{
//Not the same day
}
If d.date should be different the date was initialised at a different time (eg. 23:00:01).
http://msdn.microsoft.com/en-us/library/system.datetime.today(v=vs.110).aspx
0:00:00 is the start of the day and 23:59:59 is the end of day.
You can also confirm through this 24-hour clock
In the 24-hour time notation, the day begins at midnight, 00:00, and the last minute of the day begins at 23:59. Where convenient, the
notation 24:00 may also be used to refer to midnight at the end of a
given date[5] – that is, 24:00 of one day is the same time as 00:00 of
the following day.
On a side note:-
If you want to know the time then use .Now because that includes the 10:32:32 or whatever time; however .Today is the date-part only (at 00:00:00 on that day ie the begining of the day). So you can say that .Today is essentially the same as .Now.Date
Thats the beginning of the day, the end of the day would be:
{11-3-2014 23:59:59}
And remember, the only stupid question is the one you don't ask :)
DateTime.Today returns the current DateTime value, without the Time part.
Which means, it is the the first possible DateTime value for the current day.
Think of it like this:
The last moment in a day can be 23:59 or theoretically any amount of nanseconds before the next day. the next day then starts at 00:00:00 counting upwards.
So 11-3-2014 0:00:00 marks the beginning of a day. Either the earliest possible moment, or no time at all, if you want to treat 0:00:00 as a default value.
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Closed 11 years ago.
Possible Duplicate:
Showing Difference between two datetime values in hours
Hi,
is there an easy way to get the difference between 2 DateTime-Values in Hours?
I know, its a possibility to calculate itself by get for each day difference 24h, for each month 188h and so on... but is there an easy way given mybe?
Example:
1) 01.02.2010 12:00
2) 03.03.2011 14:00
= ? Hours differnce
It's pretty simple:
TimeSpan diff = secondDate - firstDate;
double hours = diff.TotalHours;
Note that if these DateTime values have been taken locally, the results may not be the number of elapsed hours. For example, you could have one DateTime of midnight and one of 2am, but only one hour had elapsed - because the clocks went forward at 1am. This may or may not be an issue for you. It won't be a problem if you're dealing with UTC DateTime values.
(dateTime1-dateTime2).TotalHours will give a double with the total difference in hours between the two.
date1.Subtract(date2).TotalHours
TimeSpan difference = firstDateTime - secondDateTime;
double diffInHours = difference.TotalHours
DateTime.Subtract(DateTime) will return a TimeSpan that has a TotalHours property.