nstimezone

问题 I know this it the repeated question. I have reviewed many answers but still didn’t get any solution. My question is, How can I get the Time of Device if user have set it manually..? I have implemented one chatting app. But in this app, I have issues of timings. If user have set manually time then how can we identify that.? I want to get correct current UTC time. So using this, I can identify the difference between device time and UTC time. If we are using, NSDate *currentDateAndTime =

问题 I know this it the repeated question. I have reviewed many answers but still didn’t get any solution. My question is, How can I get the Time of Device if user have set it manually..? I have implemented one chatting app. But in this app, I have issues of timings. If user have set manually time then how can we identify that.? I want to get correct current UTC time. So using this, I can identify the difference between device time and UTC time. If we are using, NSDate *currentDateAndTime =

问题 I know this it the repeated question. I have reviewed many answers but still didn’t get any solution. My question is, How can I get the Time of Device if user have set it manually..? I have implemented one chatting app. But in this app, I have issues of timings. If user have set manually time then how can we identify that.? I want to get correct current UTC time. So using this, I can identify the difference between device time and UTC time. If we are using, NSDate *currentDateAndTime =

问题 I have an application that uses a CLGeocoder to forwardGeocode a placemark from an address string. The CLPlacemark response contains a CLLocation which gives me GPS coordinates. The only way to create an NSTimeZone seems to be by using the correct Time Zone Name. It is important to point out that I am not using the current location of the device, so [NSTimeZone localTimeZone] will not work for me. Is there a way to get the timezone name for the CLLocation so that I can create an NSTimeZone

问题 I'm initializing my NSDateFormatter thusly: NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]]; [dateFormatter setDateFormat:@"EEE, d MMM yyyy HH:mm:ss z"]; [dateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]]; NSDate *date = [NSDate date]; NSString *dateString = [dateFormatter stringFromDate:date]; dateString is now: Thu, 29 Jul 2010 14:58:42 GMT+00

问题 In api call response I'm getting dates in different timezone. I want to convert it to user's local timezone plus user can select any timezone from the list of ios timezone. This is all local. We would never be sending selected user timezone to server. And while making any api call lets say i am creating an event with selected start date in a picker. I should send it global timezone not with the user selected timezone because it is local to the app. Currently I am changing defaultTimeZone on

问题 How can I find out which NSTimeZone a given longitude and latitude fall in? 回答1: I have tried APTimeZones library. In my case I needed Timezone as well as country name from the lat long of a particular city. I went through the library to know how it works. It actually has a file in JSON format which has all the timezones along with their corresponding lat longs. it takes the lat long as input and loops through this JSON file comparing the distances of all the timezone's lat long from the

问题 I'm trying to do a simple comparison of dates with the intent of moving to another array index based on the day. Though vastly more efficient than the code I was using, the following (Unable to parse a date) doesn't preserve the timezone offset: let noaaDate = "2014-08-22T15:00:00-04:00" let format="yyyy-MM-dd'T'HH:mm:ssZ" var dateFmt = NSDateFormatter() dateFmt.dateFormat = format let newreadableDate = dateFmt.dateFromString(noaaDate) println(newreadableDate) Output: Optional(2014-08-22 19

问题 I'm trying to work with dates and create dates in the future, but daylight savings keeps getting in the way and messing up my times. Here is my code to move to midnight of the first day of the next month for a date: + (NSDate *)firstDayOfNextMonthForDate:(NSDate*)date { NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; calendar.timeZone = [NSTimeZone systemTimeZone]; calendar.locale = [NSLocale currentLocale]; NSDate *currentDate = [NSDate

问题 I'm trying to work with dates and create dates in the future, but daylight savings keeps getting in the way and messing up my times. Here is my code to move to midnight of the first day of the next month for a date: + (NSDate *)firstDayOfNextMonthForDate:(NSDate*)date { NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; calendar.timeZone = [NSTimeZone systemTimeZone]; calendar.locale = [NSLocale currentLocale]; NSDate *currentDate = [NSDate