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POiOS : Switching between 12/24 hour times from strings
 

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  1. POiOS : Switching between 12/24 hour times from strings
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    <p>Interesting issue thats caught me out.</p> <p>I receive string times from a server to a device. which I then convert in to a NSDate. When the device was set to displaying 24hour times, life was good.</p> <p>Now I am testing it on a device set to 12hour times. everything has stopped working. Dates are coming back as null</p> <p>I first had</p> <pre><code> NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; [dateFormat setDateFormat:@"HH:mm"]; self.startTime = [dateFormat dateFromString:(NSString *)self.startTime]; </code></pre> <p>Worked perfectly for devices showing 24hour dates but not 12hour.</p> <p>I then tried </p> <pre><code> NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; [dateFormat setDateFormat:@"hh:mm"]; self.startTime = [dateFormat dateFromString:(NSString *)self.startTime]; </code></pre> <p>This works fine up until 12 noon, then all dates are returned as null</p> <p><strong>Update</strong></p> <p>I have also tried adding "a" but this still results in returning null</p> <pre><code> if (startDate == nil) { NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; [dateFormat setDateFormat:@"hh:mm a"]; startDate = [dateFormat dateFromString:(NSString *)self.startTime]; } </code></pre> <p><strong>Update 2</strong></p> <p>Adding local, adding :ss adding a all still do not work</p> <pre><code>NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; NSLocale *twelveHourLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]; dateFormat.locale = twelveHourLocale; [dateFormat setDateFormat:@"hh:mm a"]; startDate = [dateFormat dateFromString:(NSString *)self.startTime]; </code></pre>
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    1. USShaik Riyaz
    1. USBurf2000
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    1. COFrom where self.startTime coming?
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    2. COStartime is set to @"14:00"
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      1. USBurf2000
 

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