CODEWITHSUNDEEP
iosdatensdatensdateformatter
lakshmen
lakshmen

Reputation: 29064

Issue with getting the correct date from NSDate

I have some issues with NSDate.

The code I have looks like: 

NSDate *date    = [NSDate dateWithTimeIntervalSinceNow:logout];

When I put my breakpoint at this code and move my mouse over, it shows as 

2013-01-28 18:25:27 SGT

but when NSLog date

I get this:

2013-01-28 10:25:27

Why is this so? How do show the correct one?

Upvotes: 0

Views: 223

Answers (3)

Sarthak Patel
Sarthak Patel

Reputation: 129

Try this it works!!
  NSDate *localDate =[NSDate date]; // get the date

    NSTimeInterval timeZoneOffset = [[NSTimeZone systemTimeZone] secondsFromGMT];  

    NSTimeInterval gmtTimeInterval = [localDate timeIntervalSinceReferenceDate] + timeZoneOffset;

    NSDate *gmtDate = [NSDate dateWithTimeIntervalSinceReferenceDate:gmtTimeInterval];

    NSLog(@"%@",gmtDate);

Upvotes: 0

Stavash
Stavash

Reputation: 14304

NSDate defines an object that represents a date with certain properties (such as timezone). If you wish to display a date, you could choose to show only it's year, maybe only the hours and minutes (all this can be done using the NSDateFormatter class). What you're doing is printing the object out on the LLDB - this shows you probably the UTC version of the date so I'm not surprised that the debugger summary of that same instance shows a different time.

Decide what you need to do with this date, set it's timezone accordingly, format it and print it out in your console.

Upvotes: 1

DD_
DD_

Reputation: 7388

This problem is just because NSDate is a "raw" date. That's why it is in GMT

You can try this,

NSDate* sourceDate = [NSDate dateWithTimeIntervalSinceNow:logout];

NSTimeZone* sourceTimeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];
NSTimeZone* destinationTimeZone = [NSTimeZone systemTimeZone];

NSInteger sourceGMTOffset = [sourceTimeZone secondsFromGMTForDate:sourceDate];
NSInteger destinationGMTOffset = [destinationTimeZone secondsFromGMTForDate:sourceDate];
NSTimeInterval interval = destinationGMTOffset - sourceGMTOffset;

NSDate* destinationDate = [[NSDate alloc] initWithTimeInterval:interval sinceDate:sourceDate];

this will give you your current timezone

Upvotes: 2

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