How to calculate number of days between Calendar objects

Hi,
I need to calculate the number of days between two Calendar objects. Here is some sample code:
Calendar now = Calendar.getInstance();
now.set(Calendar.HOUR_OF_DAY, 0);
now.set(Calendar.MINUTE, 0);
now.set(Calendar.SECOND, 0);
now.set(Calendar.MILLISECOND, 0);
// get a calendar that represents a day in the past
Calendar aDayInThePast = getADayInThePast();
aDayInThePast.set(Calendar.HOUR_OF_DAY, 0);
aDayInThePast.set(Calendar.MINUTE, 0);
aDayInThePast.set(Calendar.SECOND, 0);
aDayInThePast.set(Calendar.MILLISECOND, 0);
// how can I calculate the number of days ago this was??
//it would also be useful to get back a negative number if the day is in the future

My favorite answer so far is reply 15 by Marc__: http://forum.java.sun.com/thread.jspa?threadID=488668&start=15

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How to calculate number of days between fixed date and hire date in schema

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HRS=YDXA02
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I assume we are talking about PCR for payroll. In this case look at documentation for operation NUM:
OOOOOO
Xnnnnn
X     Table
nnnnn Table field
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NUM=Faaesb
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How to calculate number of days between two date in Template design?

Hello guys
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Hi
There is an extension function you can use, from the javadoc:
date_diff
public static long date_diff(java.lang.String format,
java.lang.String fromDate,
java.lang.String toDate,
java.lang.String locStr,
java.lang.String tzID)
Method to get the difference between two dates in the given locale. The dates need to be in "yyyy-MM-dd" format. This function supports only Gregorian calendar.
Parameters:
format - the format to which the difference is required; allowed formats are y (for Year), m(for month), w(for week), d(for day), h(for hour), mi(for minute), s(for seconds) and ms(for milliseconds)
fromDate - the first date
toDate - the second date
locStr - locale string -> lang-Territory
tzID - timezone ID ->http://java.sun.com/j2se/1.4.2/docs/api/java/util/TimeZone.html
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the difference in dates in the desired format
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give a result of 6
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Regards
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Confused - How to Calculate Number of Days Between Dates but Exclude Weekend Dates If There Hasn't Been a Weekend Update

Hello -
I've been tearing my hair out over this problem i'm trying to solve, probably just been staring at it too long which is making it worse -
I have a series of open support tickets which are supposed to be updated on a daily basis, the problem is that they aren't always being updated daily. So, the business wants to know the number of days from when a ticket was last updated and today's
date. I have this basic calculation and it's working fine, however now the business wants to exclude weekends from the calculation. The other problem is that some reps DO go in on weekends and update their tickets, so sometimes there will be updates
made on weekend dates.
To give an example -
Today's date is 2014-02-10 (Monday). A ticket was last updated last Thursday, 2014-01-30. The difference between the two dates is 11, so it's been 11 days since the ticket was last updated. Now, if I exclude Saturdays and Sundays, then
it's actually been 7 days since the ticket was last updated. I'm not sure how to do this in T-SQL.
Now, to further complicate the problem, sometimes a ticket IS updated on a Saturday or Sunday. So, if a ticket was updated on 2014-02-02 (Sunday), then it should be counted. Again i'm not sure how to do this.
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Thanks!!

I've adapted this from a function on my blog. you will need to add set the YourTicketTable to where ever your tickets are stored.
CREATE
FUNCTION [dbo].[CalcWorkDaysBetween](@StartDate
As DateTime,@EndDate
AS DateTime)
RETURNS
INT AS
BEGIN
SET @EndDate
=DATEADD(DAY,1,@EndDate)
DECLARE @Count
AS Int= 0
DECLARE @Date
As Date=@StartDate
WHILE @Date
< @EndDate
BEGIN
IF (DATEPART(WEEKDAY,@Date)IN(1,7)
OR (SELECT
Count(*)
FROM YourTicketTable WHERE TicketDate=@Date)=1)
BEGIN
SELECT @Count = @Count
+ 1
END
SELECT @Date=DATEADD(Day,
1,@Date)
END
RETURN
DATEDIFF(DAY,@StartDate,@EndDate)- @Count
END
Regards,

How to calculate number of days in hijri

Dear all,
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Convert to hirjih date using:
select
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FUNCTION get_hijrah_date(
p_date in date,
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) return varchar2
is
v_hijrah_date varchar2(500);
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Edited by: igwe on Jan 30, 2013 8:07 AM

Calculate number of days between two festival dates in payroll schema

Hi Experts,
According to my company policy:
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Hi,
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Hi,
ChakravarthyDBA wrote:
Hi
I want number of Sundays between two dates
example
number of Sundays count between '01-04-2013' and '30-04-2013' in one select query I have to include this as sub query in my select statement.Here's one way:
SELECT       early_date
,       late_date
,       ( TRUNC (late_date + 1, 'IW')
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       ) / 7       AS sundays
FROM       table_x
;This does not depend on your NLS settings.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and also post the results you want from that data.
Point out where the statment above is getting the wrong results, and explain, using specific examples, how you get the right results from the given data in those places.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ {message:id=9360002}

How to calculate Number of Hours between 2 dates

Hi,
I have a Column in a table of datatype DATE i.e. Update_Date. Now How do I calculate number of hours passed starting from this date entered in the Update_Date column to SYSDATE. e.g. if the date in column is 2-FEB-2009 and the sysdate is 2/2/2009 2:07:40 AM it should give me 24. How can I get this number of hours.
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When you subtract two dates in Oracle, you get a difference in terms of days. Just multiply that by 24 to get hours.
SELECT (sysdate - update_date) days,
(sysdate - update_date) * 24 hours
FROM your_tableThat said, it is not obvious how your example works. You state
if the date in column is 2-FEB-2009 and the sysdate is 2/2/2009 2:07:40 AM it should give me 24Since both dates are on February 2, 2009, the only difference is in the time component. If we assume that the time component of the UPDATE_DATE value is midnight since it is not specified, there is a little more than 2 hours of difference between the two dates. How is it that you determine there are 24 hours of difference?
Justin
Edited by: Justin Cave on Feb 2, 2009 10:39 AM

How to calculate number of days in ABAP?

Hi,
I have a condition as below:
If (field1 - field2) > 12 Months
E.g field1 = 31.05.2011 & field2 = 10.11.2011
Can SAP actually minus dates and check if the difference is greater than 12 months?
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Thanks!
Moderator message : Date FAQ, duplicate post. Thread locked.
Edited by: Vinod Kumar on Mar 2, 2012 1:50 PM

Hi,
If your calculating dates please do not manually calculate it like that.
You need to determine like week numbers, month and days.
The best way to do it is by using FM related to dates. Play around with these FMs in your program:
Function Modules related to Date and Time Calculations
CALCULATE_DATE - Calculates the future date based on the input .
DATE_TO_DAY - Returns the Day for the entered date.
DATE_COMPUTE_DAY - Returns weekday for a date
DATE_GET_WEEK - Returns week for a date
RP_CALC_DATE_IN_INTERVAL - Add days / months to a date
DAY_ATTRIBUTES_GET - Returns attributes for a range of dates specified
MONTHS_BETWEEN_TWO_DATES - To get the number of months between the two dates.
END_OF_MONTH_DETERMINE_2 - Determines the End of a Month.
HR_HK_DIFF_BT_2_DATES -Find the difference between two dates in years, months and days.
FIMA_DAYS_AND_MONTHS_AND_YEARS - Find the difference between two dates in years, months and days.
WEEK_GET_FIRST_DAY - Get the first day of the week
SD_CALC_DURATION_FROM_DATETIME - Find the difference between two date/time and report the difference in hours
L_MC_TIME_DIFFERENCE - Find the time difference between two date/time
HR_99S_INTERVAL_BETWEEN_DATES - Difference between two dates in days, weeks, months
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DATE_CHECK_PLAUSIBILITY - Check for the invalid date.
DATE_2D_TO_4D_CONVERSION - Year entry: 2-character to 4-character.
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How to calculate number of days from a date field

Dear BW Experts.
I have a field 'Create Date' in the BEx query. Now we need to create a variable which should give the number of days from the date of running the query (sy-datum) to the Create Date.
This will help the users to get records which are say, 30 days old (Sy-datum - create date = 30) or 10 days old etc.
Could you suggest as to how to create this variable.
Thanks,
Sai

Hi,
Step 1: Create variable on "Create Date" with User entry processing type
Step 2: Create a restricted KF for Sales & restrict it on "Create Date" to get "Sales on day"
Step 3: Manipulate the values of "Create Date" on which you could restrict "Sales" again and again to get other values
Step 4: Create one variable (ZPUTMNTH) for u201CMonth to Dateu201D with processing by u201CCustomer Exitu201D. This variable was created on u201CDateu201D characteristics.
Step 5 : Goto C-mod t-code and use EXIT_SAPLRRS0_001
to calculate "month to date" user input is "Calday" Key Date
WHEN 'ZPUTMNTH'.
IF I_STEP = 2. "after the popup
LOOP AT I_T_VAR_RANGE INTO LOC_VAR_RANGE
WHERE VNAM = 'ZPDATE'.
CLEAR L_S_RANGE.
L_S_RANGE-LOW = LOC_VAR_RANGE-LOW(6). "low value, e.g.YYYYMM (200606) part of key date (20060625)
L_S_RANGE-LOW+6(2) = '01'. u201C low value e..g. YYYYMM01 (20060601)
L_S_RANGE-HIGH = LOC_VAR_RANGE-LOW. "high value = input
L_S_RANGE-SIGN = 'I'.
L_S_RANGE-OPT = 'BT'.
APPEND L_S_RANGE TO E_T_RANGE.
EXIT.
ENDLOOP.
ENDIF.
Assign if helps.....
Regards,
Suman

Formula to calculate number of days between today's date & given date BEx

Hello,
I have a date available as an attribute of dimension characteristic. How do I get current date (sy-datum) to calculate the # of days (or difference) between query execution date and given date.
Is there a system field to get current or today's date .
I am thinking to have this as calculated KF in BEx.
Any suggestions or tips
Thanks

Hi,
Create a variable on the attribute(date attribute) of characterstic. Use this variable to create a formula variable , in which you fin out the difference between current date and varaible.
There is a good document on using the attributes in the calculation in service.sap.com/bi
In infoindex--> calculation with attributes.
With rgds,
Anil Kumar Sharma .P

How to calculate number of days excluding weekends

I have the following <u>key figures</u> in my InfoCube:
Date Released to Vendors key figure - ZRELDT
Date Awarded to a Vendor key figure - ZAWRDT
In my BEx query, I need to calculate the difference between these two key figures but the weekends should be excluded. For example, if the value of ZRELDT is 08/10/2007 (which is a Friday) and the value of ZAWRDT is 08/13/2007, the result should just be 1 day and not 3 days since the other days pertain to a Saturday and a Sunday.
How do I address this in the formula when creating the Query?
thanks.

Hi,
Use func module HOLIDAY_GET need to pass the Holiday Cal the company use
and also
FM: DATE_CONVERT_TO_FACTORYDATE.
One way to use this:
Assuming:
- You have the start & end dates in variables.
- Keep a few counters
Logic:
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- If this date is not a factory date, the next date which is a factory day is returned. (I.e. passed Sunday as param, got a Monday date returned). If the day passed to the function is the same as the date returned, this is a factory day (working day)
- If the date passed to the function is not the same as the returned day then this day was not a factory day, meaning not a work date. Add 1 to a counter
- Pass the first day + 1 (use another counter for + N)
- Stop loop when passed parameter is equal to stop date.
You can replicate the factory calendar from R/3, CRM etc in your source system in RSA1 (transfer globals). In your function call, you specify which factory calendar to use
hope this help

How to calculate number of sundays and saturdays between two Dates

friends i want to calculate how many Sundays come in two Dates
i have tried following code which is hard coded i have to impliment method which can give me number of Sundays between two Dates
please help me
import java.util.Date;
     import java.text.DateFormat;
     import java.text.SimpleDateFormat;
     import java.util.Calendar ;
     import java.util.GregorianCalendar;
public class DateDiffCalculator     {
     private static final SimpleDateFormat SDF = new SimpleDateFormat("yyyy-MMM-dd");
public DateDiffCalculator()     {
     public static Date getDate (String date) throws Exception {
//log.debug(" "+date);
          return SDF.parse(date);
public static Date getDate (Date date) throws Exception {
// log.debug("date is "+date);
          return getDate(SDF.format(date));
public static long getDiffInDays(Date d1,Date d2)     {
     boolean isdiffGreaterThanYear=false;
     long diffInMilliSeconds=d1.getTime()-d2.getTime();
     return diffInMilliSeconds/(1000*60*60*24);
public static int getYear(String date)     {
          //String[] day=     {Sun,Mon,Tue,Wed,Thu,Fri,Sat};
          Integer     year=new     Integer(date.substring(0,4));
     return year.intValue();
public static int getMonth(String date)     {
          //String date.substring(5,7);
          System.out.println(" "+date.substring(5,8));
          String     m= date.substring(5,8);
          int month=0;
          if(m.equalsIgnoreCase("Jan"))     {
          month=1;
          if(m.equalsIgnoreCase("Feb"))     {
          month=2;
          if(m.equalsIgnoreCase("Mar"))     {
          month=3;
          if(m.equalsIgnoreCase("Apr"))     {
          month=4;
          if(m.equalsIgnoreCase("May"))     {
          month=5;
          if(m.equalsIgnoreCase("Jun"))     {
          month=6;
          if(m.equalsIgnoreCase("Jul"))     {
          month=7;
          if(m.equalsIgnoreCase("Aug"))     {
          month=8;
          if(m.equalsIgnoreCase("Sep"))     {
          month=9;
          if(m.equalsIgnoreCase("Oct"))     {
          month=10;
          if(m.equalsIgnoreCase("Nov"))     {
          month=11;
          if(m.equalsIgnoreCase("Dec"))     {
          month=12;
          return month;
     public static int getDay(String date)     {
          Integer     day=new     Integer(date.substring(9,11));
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public static int getNumberofSundays(String d1,String d2) throws Exception     {
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          // get object in Date form
               Date date1=getDate(d1);
               Date date2=getDate(d2);
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          GregorianCalendar c2= new GregorianCalendar(getYear(d2),getMonth(d2),getDay(d2));
          // get period
          long leavePeriod = getDiffInDays(date1,date2);
     return 12; // it should return number of sundays but we type 12 to perform compilation
public static void main(String[] arg)throws Exception     {
System.out.println(" "+getNumberofSundays("2005-Oct-07","2006-Mar-01"));
}

thanks now i have modified the get Month Code
as follows
public static int getMonth(String date)     {
          //String date.substring(5,7);
          System.out.println(" "+date.substring(5,8));
          String     m= date.substring(5,8);
          int month=0;
          if(m.equalsIgnoreCase("Jan"))     {
          month=0;
          if(m.equalsIgnoreCase("Feb"))     {
          month=1;
          if(m.equalsIgnoreCase("Mar"))     {
          month=2;
          if(m.equalsIgnoreCase("Apr"))     {
          month=3;
          if(m.equalsIgnoreCase("May"))     {
          month=4;
          if(m.equalsIgnoreCase("Jun"))     {
          month=5;
          if(m.equalsIgnoreCase("Jul"))     {
          month=6;
          if(m.equalsIgnoreCase("Aug"))     {
          month=7;
          if(m.equalsIgnoreCase("Sep"))     {
          month=8;
          if(m.equalsIgnoreCase("Oct"))     {
          month=9;
          if(m.equalsIgnoreCase("Nov"))     {
          month=10;
          if(m.equalsIgnoreCase("Dec"))     {
          month=11;
          return month;
but question remains same how to calculate number of Sundays Between 2 Dates

Number of days between to dates

Hello to all,
I would like to define a formula to calculate number of days between two dates and update the value in a key figure.
*operand: {Name of keyfigure,Fecha ini (Mes/Año),Fecha Fin (Mes/Año)}
DATA FECHAINI TYPE ZIOV_FEIN.
DATA FECHAFIN TYPE ZIOV_FFIM.
DATA INI             TYPE 0CALMONTH.
DATA FIN            TYPE 0CALMONTH.
DATA DIA_INI      TYPE D.
DATA DIA_FIN     TYPE D.
DATA DIAS          TYPE F.
FOREACH FECHAINI, FECHAFIN.
INI = FECHAINI.
FIN = FECHAFIN.
*C2DATE Determine end period date
DIA_INI = C2DATE(INI, E).
DIA_FIN = C2DATE(FIN, E).
DIAS = DIA_FIN - DIA_INI.
{ZIOV_DIAS,FECHAINI,FECHAFIN} = DIAS.
ENDFOR.
Problem: UPF057 type F conflicts with type D.
Help would be much appreciated.
Regards,
Patrícia

The function is built in:
CALL METHOD CL_RSAR_FUNCTION=>DATE_DIFF(
EXPORTING I_DATE_1 = L_ARG2
            I_DATE_2 = L_ARG3
IMPORTING E_RESULT = L_ARG1 )

I wanted to know how do you calculate the number of days between two dates

i wanted to know how do you calculate the number of days between two dates in java ? i get both the dates from the database. i guess there are many issues like leap year and Febuary having diff no of months ..etc.

thanks..
I solve my problem as
public class MyExample {
    public static void main(String a[]) {
        String stdate = "2009-03-01";
        java.sql.Date currentDate = new java.sql.Date(System.currentTimeMillis());
        java.sql.Date preDate = java.sql.Date.valueOf(stdate);
        System.out.println(currentDate);
        System.out.println(preDate);
//        int dateCom = preDate.compareTo(currentDate);
//        System.out.println(dateCom);
        long diff = currentDate.getTime() - preDate.getTime();
        int days = (int) Math.floor(diff / (24 * 60 * 60 * 1000));
         System.out.println(days);
}

How to calculate number of days between Calendar objects

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