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### How do i calculate no of days between two dates n two times Using C#

Dear All, i got the task to find no of days between two dates n Two given times Using C# I have four fields( columns) Such as follows, Arrival Date, Arrival Time, Leaving Date and Leavingtime. Example: Leaving Date-24/08/2010,Leaving Time- 08:00 , Arrival Date- 12/09/2010 ,Arrival Time-16:00, From the above Example i need to find No of days. Note : Days should calculate from Leaving time to arrival time (with reference to above example it means if he starting at 8:00 o clock(24/08/2010)  in the morning the next day eight o clock will be one day(8:00/ 25/08/2010)) Thanx in advance

### How can I calculate the Number of days between two dates Monday to Friday

`    I am using following code for Robert's Posted Code (Url:http://forums.asp.net/t/1142378.aspx) But this is for only calculate weekends saturday and sunday can any one tell me how     I get Number of days between given two dates Monday to Friday.`

```            private const int MONDAY = 1;
private const int TUESDAY = 2;
private const int WEDNESDAY = 3;
private const int THURSDAY = 4;
private const int FRIDAY = 5;
private const int SATURDAY = 6;
private const int SUNDAY = 7;

/// <summary>
/// Observe that the method calculates by including the start day, but excludes the end day
/// </summary>
/// <param name="startDate"></param>
/// <param name="endDate"></param>
/// <returns></returns>
private void GetWeekendDaysBetween(DateTime startDate, DateTime endDate,out int saturdays,out int sundays)
{
saturdays = -1;
sundays = -1;
if (endDate < startDate)
return;
TimeSpan timeBetween = endDate.Subtract(startDate);
int weekendsBetween = timeBetween.Days / 7;
sundays = ```

### How to create a calculation in a list - Calculate the number of days between two dates

I have a calculated column in a list called Days Open. This column contains the number of days between today (Sysdate) and another column called the Effective Date. Therefore, if Sysdate is 11/16/2010 and the Effective Date is 10/14/2010, how do I calculate the number of days between the two dates?

I tried using this formula: =TEXT(Sysdate-[Effective Date],"h") and then I tried =INT(Sysdate-Effective Date) & TEXT(Sysdate-Effective Date, ":hh:mm")

Neither formula worked. I hope it is something real simple that I am missing here. Any help you can provide will be highly appreciated!

### calculate business day between two dates

Hi Guys   I need the count of business days between two  dates Date1, Date2 i need the count only business day (exclude sartuday&sunday) If date1 is null or nothing i need to pass 0 If date2 is null or nothing i need to pass 0   help on this

### MOSS 2007 Calculate Due Date including working hours and working days

Hi, I've searched many forums for an answer to my problem but with very limited success. Basically, I've created a Sharepoint list where I would like to track a resolution of incidents versus SLA timings. I have a column with a receiving date, which is a date when the request was submitted and another column with priority code where I have 3 possible values: low (5 working days to close the request), medium (3 days) and high (1 day). What I would like to do is to automatically calculate due date for solving the incident based on the receiving date and the priority code. The thing is that now it is getting more complicated since I need to exclude saturdays and sundays from calculation, as well as national holidays. Then I would like to take into account working hours (from 8am to 4pm), for example if an incident with medium priority was submitted on Friday 5pm, then it would have its due date set to Wednesday 4pm (the request was sent after working hours so we have 3 full working days to complete it) Not sure if it is feasible to achieve using formulas, maybe some other way?

### days between two dates

Is there any way to  get days between two dates and the date format is dd/MM/yyyy i tried many ways but it's not working please help me

### How can I calculate the Number of Weekends between two dates

I need to be able to figure out the number of Saturdays and the number of Sundays between two dates.  I know that I can do this by looping through the series of dates between the start date and end date.  Years ago I saw a piece of code that an ex-co worker wrote that accomplished this task using a formula.  The formula was extemely effecient.  Unfortunately I no longer have access to this code.  Does anyone have an algorithm that will perform this calculation that I can make use of?  Thanks

### How to calculate difference between two dates in years

hi all,

i need to know if, given a birth date, a person has more than x years. Thats mean, the client must entry a date in a textbox and i need to know if the persona has more than 18 years.

### How to calculate days from two date textbox?

have two text box on which I give two date input by using rapid application development datepicker textbox. I have another text box on which I wanna show the duration of those two text box date.
I want to calculate total days of those to date. Can anyone please provide me a solution?

### How to calculate working hours betwwen two dates?

Working days - Mon-Fri and Working hours - 9 Am to 5 Pm

Date1                                       Date2                                                Working Hours

Thur, 14-Oct-10 11.30 Am          Thur, 14-Oct-10 5.00 Am                     5.30

Fri,  15-Oct-10 11.30 Am            Mon, 18-Oct-10 5.00 Am                      13.30

Mon,  18-Oct-10 11.30 Am          Mon, 18-Oct-10 6.00 Am                      5.30

Thanks & Regards, PSWA

### Calculating yrs, months, days, hours, mins, seconds between two dates. SQL

I'm trying to calculate the yrs, months, days, hours, mins, seconds between two dates with sql server or c# (ive just used sql more).

I have some code below that I started, but I get some negative values for months, values over 31 for months, and there very well could be more issues. Honestly my math is not the greatest and Im just not sure how to fix it. I want the user to be able to enter their birthday and for it to calculate the yrs, months, days, hours, mins, and seconds they have been alive.

Any help would be great

Thanks

```SELECT DATEDIFF(YEAR,'10/16/1995',GETDATE()) AS Years,
((DATEDIFF(MONTH,'10/16/1995',GETDATE()))-(DATEDIFF(YEAR,'10/16/1995',GETDATE())*12)) AS 'Months',
(DATEDIFF(DAY,'10/16/1995',GETDATE()))-(DATEDIFF(MONTH,'10/16/1995',GETDATE())*30) AS 'Days',
(DATEDIFF(HOUR,'10/16/1995',GETDATE()))-(DATEDIFF(DAY,'10/16/1995',GETDATE())*24) AS 'Hours',
(DATEDIFF(MINUTE,'10/16/1995',GETDATE()))-(DATEDIFF(HOUR,'10/16/1995',GETDATE())*60) AS 'Minutes',
(DATEDIFF(SECOND,'10/16/1995',GETDATE()))-(DATEDIFF(MINUTE,'10/16/1995',GETDATE())*60) AS 'Seconds'
;```

### How to calculate total work hours between dates?

I am in the process of creating a calendar.  This calendar is to track leave hours for employees.  For example if a person takes leave for 2.5 days then the formula would calculate 8hrs per day and 4 hours for half a day = 20hrs.  I have part of the formula I believe "=TEXT([End Time]-[Start Time],"h")".  The problem is that it does not count multiple days and just not working right. Any advice would help.
Qjm

### function to calculate number of business days in a month for a given date

hi ,

Is there any function to calculate number of business days in a month for a particular date.  my input would be just a single date

thanks,

Vishal

### Calculate distance, bearing and more between Latitude/Longitude points

This page presents a variety of calculations for latitude/longitude points, with the formulÃÂ¦ and code fragments for implementing them.

All these formulÃÂ¦ are for calculations on the basis of a spherical earth (ignoring ellipsoidal effects) - which is accurate enough* for most purposes. [In fact, the earth is very slightly ellipsoidal; using a spherical model gives errors typically up to 0.3% - see notes for further details].

### How to calculate the distance between two points on the Earth

We offer many Global Database Products that you can use with the below formulas to calculate distances and many other uses. Not sure how to use distance calculations or global databases within your company? See our Global Database Examples for more information on how to use our data within your industry. Be sure to Download a Free Sample of one of our many Global Database Products.

### Logic to calculate business hours

Hi All,

I have tried searching all over the web for this logic. Got many but half of them did not match what i was looking for and half were malfunctioning.

I want to calculate business working hours between 2 datetime, where in I should be able to set the working hours as well as weekends and holidays should not be calculated.