how to convert a date String like "05/20/2015 05:27 pm" into NSDate then to timestamp

Question

I am converting this date string "05/20/2015 05:27 pm" into NSDate with the help of formatter but it returns nil.

-(NSDate *)dateFromString:(NSString *)strDate withFormat:(NSString *)strDateFormat
{
NSDate *date = nil;

[self.dateFormatter setTimeZone:[NSTimeZone localTimeZone]];
if (strDate) {
    if (strDateFormat) {
        [self.dateFormatter setDateFormat:strDateFormat];

    }

    date = [self.dateFormatter dateFromString:strDate];

}
return  date;
}

I am using the above function where I am passing the string as "05/20/2015 05:27 pm" with format @"dd/MM/yyyy HH:mm:ss".

call you function like this : `[self dateFromString:@"05/20/2015 05:27 pm" withFormat:@"mm/dd/yyyy hh:mm a"]` — Viral Savaj, May 20 '15 at 12:24

score 1 · Answer 1 · answered May 20 '15 at 12:15

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"mm/dd/yyyy hh:mm a"];
[dateFormatter setTimeZone:[NSTimeZone systemTimeZone]];
NSDate *stringDate = [dateFormatter dateFromString:@"05/20/2015 05:27 pm"];
NSLog(@"%@", stringDate);

score 1 · Answer 2 · answered May 20 '15 at 12:18

1

-(NSDate *)dateFromString:(NSString *)strDate withFormat:(NSString *)strDateFormat
{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:strDateFormat];

    [dateFormatter setTimeZone:[NSTimeZone systemTimeZone]];
    NSDate *date = [dateFormatter dateFromString:strDate];
    return date;

}

answered May 20 '15 at 12:18

Dharmesh Dhorajiya

3,976
9
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39

there is no problem with the function, I am passing a wrong format . this format helps "mm/dd/yyyy hh:mm a" given by @VD Patel – Faran Ghani May 20 '15 at 12:23

score 0 · Answer 3 · edited May 20 '15 at 13:06

0

NSString *dateStr = @"05/20/2015 05:27 pm";

// Convert string to date object

NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];

[dateFormat setDateFormat:@"dd-MM-yyyy HH:mm:ss Z"];

NSDate *date = [dateFormat dateFromString:dateStr]; 

Nslog(@"%@",date);

edited May 20 '15 at 13:06

Dharmesh Dhorajiya

3,976
9
30
39

answered May 20 '15 at 12:22

Nikunj

280
3
15

score 0 · Answer 4 · answered May 20 '15 at 14:46

0

To transform from NSDate to timestamp you can use:

NSDate *date = [NSDate date];
NSTimeInterval timestampSeconds = [date timeIntervalSince1970];

Result will be in seconds. To transform timestamp to standard milliseconds just multiply by 1000.

answered May 20 '15 at 14:46

Dima Cheverda

402
1
4
10

score 0 · Answer 5 · edited May 23 '17 at 11:52

timeIntervalSince1970

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"mm/dd/yyyy hh:mm a"];
NSDate *strDate = [formatter dateFromString:@"05/20/2015 05:27 pm"];
NSLog(@"%@", strDate);//NSDate
time_t timeStamp = (time_t) [strDate  timeIntervalSince1970];
NSLog(@"%ld", timeStamp);//timestamp

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This might helps you :)

how to convert a date String like "05/20/2015 05:27 pm" into NSDate then to timestamp

5 Answers5