Get date in current time zone in objective - c?

NSArray *fromD = [setFreeHour valueForKey:@"fromDate"];
NSString *fromdate = fromD[0];
NSDateFormatter *fromDateFormatter = [[NSDateFormatter alloc]init];

[fromDateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];
NSDate *fromDate = [fromDateFormatter dateFromString:fromdate];


Results :

In fromdate = 2018-07-24 11:41:25

In fromDate = 2018-07-24 06:11:25 +0000

So how can i get both the date (fromdate and fromDate) equal or fromDate in Local Time Zone

fromdate

String

fromDate

Date

String

1 Answer
1

NSDate values represent a point in time irrespective of the local interpretation of that point, i.e. when it is midday where you are it is midnight somewhere else - same point in time, different local interpretation.

NSDate

So when you compare dates you convert them to the equivalent NSDate representation first.

NSDate

To convert a date/time in text format to NSDate format you use NSDateFormatter. If there is no time zone specified in the text format you are using, or you do set the formatters time zone property, then your instance of NSDateFormatter will use the current local time zone set on the machine it is running on. E.g. If your code the time difference between the text format and the resultant NSDate value is 5 hours, so we can deduce the machine you used is in a local time

NSDate

NSDateFormatter

NSDateFormatter

NSDate

I need to compare these date. So how can i get both the date equal?

You do exactly what you did, convert your text format to an NSDate value and then compare those values using the methods provided by NSDate. That is you don't "get both equal", you convert each to its point in time and compare those.

NSDate

NSDate

HTH

BTW: It is inadvisable to use variable names, fromdate and fromDate, which differ in (minor) capitalisation, it makes the code hard to read, debug and maintain.

fromdate

fromDate

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