How to compare time between a time interval in iphone

Question

NSDate* firstTime = (NSDate *)openTime;//10:00AM
NSDate* secondTime = (NSDate *)closeTime;//10:00PM
NSDate* nowTime = (NSDate *)str;//3:09PM

NSComparisonResult result1 = [nowTime  compare:firstTime];
NSComparisonResult result2 = [nowTime  compare:secondTime];
if(result1==NSOrderedDescending  && result2==NSOrderedAscending)
{
    return TRUE;//------ expecting result is true as per sample
}
else
{
    return FALSE;
}

I am having this code and I am expecting result is true that I gave in code. but I am getting is false. My aim is to check my current time between the start time and end time. Please help me.

What are the 'date' components of your 'openTime' and 'closeTime'. Try some 'NSLog'-ing. — Rok Jarc, Apr 29 '13 at 09:49
http://stackoverflow.com/questions/1072848/how-to-check-if-an-nsdate-occurs-between-two-other-nsdates — Ramu Pasupuleti, Apr 29 '13 at 09:50
both "duplicate" links are linked to date&time comparsion questions - OP (seems so) wants to compare only time-components of `NSDate` — Rok Jarc, Apr 29 '13 at 09:53
@SubinKurian: how do you really (in your code) instantiate `openTime` and `closeTime`? — Rok Jarc, Apr 29 '13 at 10:00
no date components we have.. only time and it not getting worked at any way time coming as a string 10:00AM-10:00PM and i am parsing it to two components and i need is compair with current time. is this current time in between this time or not — Subin Kurian, Apr 29 '13 at 10:00
Is your openTime, closeTime really instances of NSDate? or are they strings? — Anupdas, Apr 29 '13 at 10:16
NSDateFormatter* dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]]; [dateFormatter setDateFormat:@"hh:mma"]; NSString *str=[dateFormatter stringFromDate:[NSDate date]]; — Subin Kurian, Apr 29 '13 at 10:20
Is my answer not working? If not can you share how openTime and closeTime is instantiated? — Anupdas, Apr 29 '13 at 12:06

score 4 · Answer 1 · answered Apr 29 '13 at 10:34

Try

NSString *fromDateString = @"10:00AM";
NSString *toDateString = @"10:00PM";

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"hh:mma"];
NSLocale *locale = [[NSLocale alloc]initWithLocaleIdentifier:@"en_US_POSIX"];
[dateFormatter setLocale:locale];

NSString *nowDateString = [dateFormatter stringFromDate:[NSDate date]];

NSDate *firstTime   = [dateFormatter dateFromString:fromDateString];
NSDate *secondTime  = [dateFormatter dateFromString:toDateString];
NSDate *nowTime     = [dateFormatter dateFromString:nowDateString];

NSComparisonResult result1 = [nowTime compare:firstTime];
NSComparisonResult result2 = [nowTime compare:secondTime];

if ((result1 == NSOrderedDescending) &&
    (result2 == NSOrderedAscending)){
    return TRUE;
}else{
    return FALSE;
}

Thanks I would like to know about what will be result if we campare time in 2 days.means comparing time in 2 days eg 4PM and 4AM — Rahul K Rajan, Jun 29 '16 at 11:15

Anoop Vaidya · Answer 2 · 2013-04-29T10:33:40.290

0

I tried with some dummy data in OSX, you need to change with your original values

NSDate *nowTime=[NSDate date];
NSDate *firstTime=[NSDate dateWithNaturalLanguageString:@"22 April 2013"];
NSDate *secondTime=[NSDate dateWithNaturalLanguageString:@"23 April 2013"];


BOOL first=([nowTime compare:firstTime] == NSOrderedDescending);//now time is more then firsttime
BOOL second=([nowTime compare:secondTime] == NSOrderedAscending);//now time is more then secondtime
if(first && second){
    ;//return YES;
    NSLog(@"Between");
}
else{
    ;//return NO;
    NSLog(@"Not in Between");
}

EDIT:

I checked it with time as:

NSDate *firstTime=[NSDate dateWithNaturalLanguageString:@"5PM"];
NSDate *secondTime=[NSDate dateWithNaturalLanguageString:@"10PM"];

And it is working good.

edited Apr 29 '13 at 10:33

answered Apr 29 '13 at 09:51

Anoop Vaidya

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we tried it , 1st part is ok (First) second giving is NO it is wrong. what we will do? – Subin Kurian Apr 29 '13 at 10:01
check the time is it really in the range... – Anoop Vaidya Apr 29 '13 at 10:05
yes.. now time is 3:37 PM and i am comparing with 10:00AM and 10:00PM – Subin Kurian Apr 29 '13 at 10:08
can u check it with a time? can u use 10:00AM and 10:00PM as time insted of 22 April 2013 & 23 April 2013. it true in date case i think but in time it not getting true – Subin Kurian Apr 29 '13 at 10:31
@SubinKurian: I checked it with time, and it worked. You can also try the above code – Anoop Vaidya Apr 29 '13 at 10:33

Nishant Tyagi · Answer 3 · 2013-04-29T11:06:34.703

Check this out

  NSString *openTime = @"10:00 AM";
    NSString *closeTime = @"10:00 PM";
    NSString *str = @"11:09 PM";

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"hh:mma"];

    NSDate *firstTime =  [[NSDate alloc]init];
    firstTime = [dateFormatter dateFromString:openTime];

    NSDate* secondTime =  [[NSDate alloc]init];
    secondTime = [dateFormatter dateFromString:closeTime];
    NSDate* nowTime =  [[NSDate alloc]init];
    nowTime = [dateFormatter dateFromString:str];

    NSTimeInterval interval =[[NSDate date] timeIntervalSince1970];
    NSLog(@"interval : %f",interval);

    if([nowTime timeIntervalSince1970] >= [firstTime timeIntervalSince1970] && [nowTime timeIntervalSince1970] <= [secondTime timeIntervalSince1970])
    {

       return YES;// Between Interval

    }
    else
   {
   return NO; // Not between Interval
    }

Hope it helps you.

it not working anyway. it is false – Subin Kurian Apr 29 '13 at 10:21 — Subin Kurian, Apr 29 '13 at 10:21
@Subin I have updated my answer. Check it – Nishant Tyagi Apr 29 '13 at 11:06 — Nishant Tyagi, Apr 29 '13 at 11:06

score 0 · Answer 4 · answered Apr 29 '13 at 11:26

Convert your dates to timeInterval, like:

NSDate* firstTime = (NSDate *)openTime;//10:00AM
NSDate* secondTime = (NSDate *)closeTime;//10:00PM
NSDate* nowTime = (NSDate *)str;//3:09PM
NSTimeInterval firstTimeInterVal = [firstTime NSTimeIntervalSince1970]
NSTimeInterval secondTimeInterVal = [secondTime NSTimeIntervalSince1970]
NSTimeInterval nowTimeInterval = [nowTime NSTimeIntervalSince1970];

Then compare like:

if (nowTimeInterval > firstTimeInterVal && nowTimeInterval < secondTimeInterVal) {
    /**Between**/
}else{
    /**Not Between**/
}

How to compare time between a time interval in iphone

4 Answers4