nsdate - w3toppers.com

Convert NSDate to NSString

How about… NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@”yyyy”]; //Optionally for time zone conversions [formatter setTimeZone:[NSTimeZone timeZoneWithName:@”…”]]; NSString *stringFromDate = [formatter stringFromDate:myNSDateInstance]; //unless ARC is active [formatter release]; Swift 4.2 : func stringFromDate(_ date: Date) -> String { let formatter = DateFormatter() formatter.dateFormat = “dd MMM yyyy HH:mm” //yyyy return formatter.string(from: date) }

NSDate() or Date() shows the wrong time

NSDate (or Date in Swift ≥ V3) does not have a time zone. It records an instant in time all over the world. Internally, date objects record the number of seconds since the “epoch date”, or Midnight on January 1, 2001 in Greenwich Mean Time, a.k.a UTC. We normally think of dates in our local … Read more

How do I get the current Date in short format in Swift

Xcode 11 or later • Swift 5.1 or later extension TimeZone { static let gmt = TimeZone(secondsFromGMT: 0)! } extension Locale { static let ptBR = Locale(identifier: “pt_BR”) } extension Formatter { static let date = DateFormatter() } extension Date { func localizedDescription(date dateStyle: DateFormatter.Style = .medium, time timeStyle: DateFormatter.Style = .medium, in timeZone: TimeZone … Read more

Difference between ‘YYYY’ and ‘yyyy’ in NSDateFormatter

Also when using a date format string using the correct format is important. @”YYYY” is week-based calendar year. @”yyyy” is ordinary calendar year. You can go through the whole blog, its a good to give it a look https://web.archive.org/web/20150423093107/http://realmacsoftware.com/blog/working-with-date-and-time http://realmacsoftware.com/blog/working-with-date-and-time (dead link)

Getting the difference between two Dates (months/days/hours/minutes/seconds) in Swift

Xcode 8.3 • Swift 3.1 or later You can use Calendar to help you create an extension to do your date calculations as follow: extension Date { /// Returns the amount of years from another date func years(from date: Date) -> Int { return Calendar.current.dateComponents([.year], from: date, to: self).year ?? 0 } /// Returns the … Read more

Converting NSString to NSDate (and back again)

Swift 4 and later Updated: 2018 String to Date var dateString = “02-03-2017” var dateFormatter = DateFormatter() // This is important – we set our input date format to match our input string // if the format doesn’t match you’ll get nil from your string, so be careful dateFormatter.dateFormat = “dd-MM-yyyy” //`date(from:)` returns an optional … Read more

Getting date from [NSDate date] off by a few hours

NSDate objects don’t have time zones. They represent an absolute moment in time. However, when you ask one for its description (by printing it with NSLog(), e.g.), it has to pick a time zone. The most reasonable “default” choice is GMT. If you’re not in GMT yourself, the date will seem to be incorrect, by … Read more

How can I create an array of certain times?

NSDate * date = [NSDate date]; NSArray * array = @[]; NSUInteger index = [array indexOfObjectPassingTest:^BOOL(id obj, NSUInteger idx, BOOL *stop) { return ![[((NSDate *)obj) earlierDate:date] isEqualToDate:date]; }]; NSDate * refDate = nil; if (index != NSNotFound) refDate = array[index];

Converting NSString to NSDate gives nil [duplicate]

i know this question false in duplicate category & i flagged it as well. but i am answering here with explanation, if in case OP does not get the references . NSString *dateString = @”2014-04-30T00:00:00″; //input string NSDateFormatter *formatter = [[NSDateFormatter alloc]init]; [formatter setDateFormat:@”yyyy-MM-dd’T’HH:mm:ss”];// fomatter in your case NSDate *date = [formatter dateFromString:dateString]; NSLog(@”date is%@”,date); … Read more

Calculate next date in week

Use [NSCalendar currentCalendar] to get NSDateComponents from the current date, especially NSWeekdayCalendarUnit and NSWeekOfYearCalendarUnit. the components will have a member weekday, that ranges from 1 — sunday to 7 — saturday. if it is 1 or 2, create a new componets with weekday 2, if it is 7, add one to weekOfYear and set weekday … Read more