Convert String to Date in Objective-C [duplicate] - ios

Question

This question already has an answer here:
Converting NSString to NSDate - wrong format
(1 answer)
Closed 4 years ago.
How do i convert string to date in Objective C.
I have tried the following but did not figure it out.
NSString *str = #"3/2/2018 11:44:32 AM";
NSDateFormatter *df = [[NSDateFormatter alloc] init];
[df setDateFormat:#"MM/d/yyyy h:mm:ss a"];
NSDate *resultDate = [[NSDate alloc] init];
resultDate = [df dateFromString:str];
NSLog(#"result date: %#", resultDate);
result date: 2018-03-02 06:14:32 +0000 ,but i need to get it as
result date: 3/2/2018 11:44:32 AM

Answer 1

You are correctly parsing the string to the Date object. The way it is presented by the print is because by default if printing an object, its description is printed. In case of Date, it will be always the format you get. But the date is correct.
If you want to get it presented the way it was before, again use the same dateFormatter and just format the date to string back:
NSLog(#"result date: %#", [df stringFromDate:resultDate]);
UPDATE
If the problem is the hour shift, that's due to your current timezone that will be used when parsing using DateFormatter. To overcome this, set explicitly timezone and locale of the date formatter, see this example (swift version, but you need just those two line with setting timeZone and locale on dateFormatter):
let dateString = "3/2/2018 11:44:32 AM"
let df = DateFormatter()
df.dateFormat = "MM/d/yyyy h:mm:ss a"
// set the timezone and locale of the dateformatter:
df.timeZone = TimeZone(identifier: "GMT")
df.locale = Locale(identifier: "en_US_POSIX")
let date = df.date(from: dateString)
// now it will print as you expect:
print(date)

Answer 2

Your issue is related to your app current locale, if your current locale is "en_US" then your NSLog(#"result date: %#", resultDate); line will print
result date: Fri Mar 2 11:44:32 2018

Answer 3

Maybe, this code will help you, again that date its convert to Nsstring, check it this code
-(void)DateChange
{
NSString *Input_Date =#"3/22/2018 11:44:32 AM";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"M/d/yyyy hh:mm:ss a"];
NSDate * Format_date = [dateFormatter dateFromString:Input_Date];
[dateFormatter setDateFormat:#"M/d/yyyy hh:mm:ss a"];
NSString *Change_date = [dateFormatter stringFromDate:Format_date];
NSLog(#"Final Change Date :- %#",Change_date);
}
My Output is :-
Final Change Date :- 3/22/2018 11:44:32 AM