How do I add 1 day to an NSDate

Question

Basically  as the title says  I m wondering how I could add 1 day to an NSDate   So if it were   21st February 2011   It would become   22nd February 2011   Or if it were   31st December 2011   It would become   1st January 2012

User · Answer

Swift 3 0 very simple implementation would be   func dateByAddingDays inDays  Int  - gt  Date       let today   Date       return Calendar current date byAdding   day  value  inDays  to  today

User · Answer

In swift 4 or swift 5  you can use like bellow       let date   Date       let yesterday   Calendar current date byAdding   day  value  -1  to  date      let dateFormatter   DateFormatter       dateFormatter dateFormat    yyyy-MM-dd      let yesterday date   dateFormatter string from  yesterday       print  yesterday- gt   yesterday date    output   Current date  2020-03-02 yesterday date  2020-03-01

User · Answer

In Swift 2 1 1 and xcode 7 1 OSX 10 10 5  you can add any number of days forward and backwards using function  func addDaystoGivenDate baseDate NSDate NumberOfDaysToAdd Int - gt NSDate       let dateComponents   NSDateComponents       let CurrentCalendar   NSCalendar currentCalendar       let CalendarOption   NSCalendarOptions        dateComponents day   NumberOfDaysToAdd      let newDate   CurrentCalendar dateByAddingComponents dateComponents  toDate  baseDate  options  CalendarOption      return newDate      function call for incrementing current date by 9 days  var newDate   addDaystoGivenDate NSDate    NumberOfDaysToAdd  9  print newDate    function call for decrement current date by 80 days  newDate   addDaystoGivenDate NSDate    NumberOfDaysToAdd  -80   print newDate

User · Answer

A working Swift 3  implementation based on highmaintenance s answer and vikingosegundo s comment  This Date extension also has additional options to change year  month and time   extension Date            Returns a Date with the specified amount of components added to the one it is called with     func add years  Int   0  months  Int   0  days  Int   0  hours  Int   0  minutes  Int   0  seconds  Int   0  - gt  Date            let components   DateComponents year  years  month  months  day  days  hour  hours  minute  minutes  second  seconds          return Calendar current date byAdding  components  to  self                 Returns a Date with the specified amount of components subtracted from the one it is called with     func subtract years  Int   0  months  Int   0  days  Int   0  hours  Int   0  minutes  Int   0  seconds  Int   0  - gt  Date            return add years  -years  months  -months  days  -days  hours  -hours  minutes  -minutes  seconds  -seconds             Usage for only adding a day as asked by OP would then be   let today   Date      date is then today for this example let tomorrow   today add days  1

User · Answer

Swift 5 0         var dayComponent      DateComponents   dayComponent day      1    For removing one day  yesterday   -1 let theCalendar       Calendar current let nextDate          theCalendar date byAdding  dayComponent  to  Date    print  nextDate     nextDate      Objective C    NSDateComponents  dayComponent     NSDateComponents alloc  init   dayComponent day   1   NSCalendar  theCalendar    NSCalendar currentCalendar   NSDate  nextDate    theCalendar dateByAddingComponents dayComponent toDate  NSDate date  options 0    NSLog   nextDate           nextDate     This should be self-explanatory

User · Answer

You can use NSDate s method -  id dateByAddingTimeInterval  NSTimeInterval seconds where seconds would be 60   60   24   86400

User · Answer

NSDate  now    NSDate date   int daysToAdd   1  NSDate  tomorrowDate    now dateByAddingTimeInterval 60 60 24 daysToAdd    NSDateFormatter  dateFormatter     NSDateFormatter alloc  init    dateFormatter setDateFormat   EEEE  dd MMM yyyy    NSLog         dateFormatter stringFromDate tomorrowDate

User · Answer

Use the below function and use days paramater to get the date daysAhead daysBehind just pass parameter as positive for future date or negative for previous dates      NSDate    getDate  NSDate   fromDate daysAhead  NSUInteger days       NSDateComponents  dateComponents     NSDateComponents alloc  init       dateComponents day   days      NSCalendar  calendar    NSCalendar currentCalendar       NSDate  previousDate    calendar dateByAddingComponents dateComponents                                                      toDate fromDate                                                     options 0        dateComponents release       return previousDate

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Swift 4  if all you really need is a 24 hour shift  60 60 24 seconds  and not  1 calendar day   Future  let dayAhead   Date timeIntervalSinceNow  TimeInterval 86400 0    Past  let dayAgo   Date timeIntervalSinceNow  TimeInterval -86400 0

User · Answer

Swift 2 0  let today   NSDate       let calendar   NSCalendar currentCalendar   let tomorrow   calendar dateByAddingUnit  Day  value  1  toDate  today  options  NSCalendarOptions MatchFirst

User · Answer

Swift 4 0  extension Date       func add   unit  Calendar Component  value  Int  - gt  Date            return Calendar current date byAdding  unit  value  value  to  self            Usage  date add  day  3        adds 3 days date add  day  -14        subtracts 14 days   Note  If you don t know why the lines of code end with an exclamation point  look up  Swift Optionals  on Google

User · Answer

update for swift 5  let nextDate   fromDate addingTimeInterval 60 60 24

User · Answer

Swift 4 0  same as Swift 3 0 in this wonderful answer just making it clear for rookies like me   let today   Date   let yesterday   Calendar current date byAdding   day  value  -1  to  today

User · Answer

NSDate  today  NSDate date   NSCalendar  calendar     NSCalendar alloc  initWithCalendarIdentifier  NSGregorianCalendar   NSDateComponents  components   NSDateComponents alloc  init   components day 1  NSDate  targetDate   calendar dateByAddingComponents components toDate today options  0

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Since iOS 8 you can use NSCalendar dateByAddingUnit  Example in Swift 1 x   let today   NSDate   let tomorrow   NSCalendar currentCalendar        dateByAddingUnit            CalendarUnitDay            value  1            toDate  today            options  NSCalendarOptions 0          Swift 2 0   let today   NSDate   let tomorrow   NSCalendar currentCalendar        dateByAddingUnit           Day           value  1           toDate  today           options             Swift 3 0   let today   Date   let tomorrow   Calendar current date byAdding   day  value  1  to  today

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iOS 8   OSX 10 9   Objective-C  NSCalendar  cal    NSCalendar currentCalendar       NSDate  tomorrow    cal dateByAddingUnit NSCalendarUnitDay                                     value 1                                    toDate  NSDate date                                    options 0

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Updated for Swift 5  let today   Date   let nextDate   Calendar current date byAdding   day  value  1  to  today    Objective C        NSCalendar  gregorian     NSCalendar alloc  initWithCalendarIdentifier NSGregorianCalendar       now build a NSDate object for the next day  NSDateComponents  offsetComponents     NSDateComponents alloc  init     offsetComponents setDay 1    NSDate  nextDate    gregorian dateByAddingComponents offsetComponents toDate   NSDate date  options 0

User · Answer

Here is a general purpose method which lets you add subtract any type of unit Year Month Day Hour Second etc  in the specified date   Using Swift 2 2  func addUnitToDate unitType  NSCalendarUnit  number  Int  date NSDate  - gt  NSDate        return NSCalendar currentCalendar   dateByAddingUnit          unitType          value  number          toDate  date          options  NSCalendarOptions rawValue  0        print  addUnitToDate  Day  number  1  date  NSDate         Adds 1 Day To Current Date print  addUnitToDate  Hour  number  1  date  NSDate         Adds 1 Hour To Current Date print  addUnitToDate  Minute  number  1  date  NSDate         Adds 1 Minute To Current Date     NOTE  You can use negative values to get backward values too

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String extension  Convert String Date   Date  extension String    func DateConvert oldFormat String - gt Date     format example  yyyy-MM-dd HH mm ss      let isoDate   self     let dateFormatter   DateFormatter       dateFormatter locale   Locale identifier   en US POSIX      set locale to reliable US POSIX     dateFormatter dateFormat   oldFormat     return dateFormatter date from isoDate           Date extension  Convert Date   String  extension Date   func DateConvert   newFormat String - gt  String      let formatter   DateFormatter       formatter dateFormat   newFormat     return formatter string from  self         Date extension   Get   - Date  extension String    func next day Int - gt Date      var dayComponent      DateComponents       dayComponent day      day     let theCalendar       Calendar current     let nextDate          theCalendar date byAdding  dayComponent  to  Date        return nextDate        func past day Int - gt Date      var pastCount   day     if pastCount gt 0           pastCount   day   -1           var dayComponent      DateComponents       dayComponent day      pastCount     let theCalendar       Calendar current     let nextDate          theCalendar date byAdding  dayComponent  to  Date        return nextDate         Usage   let today   Date   let todayString    2020-02-02 23 00 00  let newDate   today DateConvert  yyyy-MM-dd HH mm ss     2020-02-02 23 00 00 let newToday   todayString DateConvert oldFormat   yyyy-MM-dd HH mm ss    2020-02-02 let newDatePlus   today next day  1   2020-02-03 23 00 00 let newDateMinus   today past day  1   2020-02-01 23 00 00   reference  from multiple question How do I add 1 day to an NSDate  math function to convert positive int to negative and negative to positive  Converting NSString to NSDate  and back again

User · Answer

Update for Swift 4  let now   Date      the current date time let oneDayFromNow   Calendar current date byAdding   day  value  1  to  now     Tomorrow with same time of day as now

User · Answer

I had the same problem  use an extension for NSDate   -  id dateByAddingYears  NSUInteger years                  months  NSUInteger months                    days  NSUInteger days                   hours  NSUInteger hours                 minutes  NSUInteger minutes                 seconds  NSUInteger seconds       NSDateComponents   delta      NSDateComponents alloc  init  autorelease       NSCalendar   gregorian      NSCalendar alloc                                 initWithCalendarIdentifier NSCalendarIdentifierGregorian  autorelease         delta setYear years        delta setMonth months        delta setDay days        delta setHour hours        delta setMinute minutes        delta setSecond seconds        return  gregorian dateByAddingComponents delta toDate self options 0

User · Answer

In swift you can make extension to add method in NSDate  extension NSDate       func addNoOfDays noOfDays Int  - gt  NSDate            let cal NSCalendar   NSCalendar currentCalendar           cal timeZone   NSTimeZone abbreviation   UTC            let comps NSDateComponents   NSDateComponents           comps day   noOfDays         return cal dateByAddingComponents comps  toDate  self  options  nil            you can use this as  NSDate   addNoOfDays 3

User · Answer

In swift  var dayComponenet   NSDateComponents   dayComponenet day   1  var theCalendar   NSCalendar currentCalendar   var nextDate   theCalendar dateByAddingComponents dayComponenet  toDate  NSDate    options  nil

User · Answer

NSDateComponents  dayComponent      NSDateComponents alloc  init  autorelease   dayComponent day   1   NSCalendar  theCalendar    NSCalendar currentCalendar   dateToBeIncremented    theCalendar dateByAddingComponents dayComponent toDate dateToBeIncremented options 0     Ok - I thought this was going to work for me  However  if you use it to add a day to the 31st March 2013  it ll return a date that has only 23 hours added to it  It may well actually have the 24  but using in calculations has only 23 00 hours added   Similarly  if you blast forward to 28th Oct 2013  the code adds 25 hours resulting in a date time of 2013-10-28 01 00 00   In order to add a day I was doing the thing at the top  adding the   NSDate  newDate1    now dateByAddingTimeInterval 60 60 24 daysToAdd     Complicated  principally due to daylight saving

User · Answer

for swift 2 2   let today   NSDate   let tomorrow   NSCalendar currentCalendar   dateByAddingUnit           Day          value  1          toDate  today          options  NSCalendarOptions MatchStrictly    Hope this helps someone

User · Answer

Use following code   NSDate  now    NSDate date   int daysToAdd   1  NSDate  newDate1    now dateByAddingTimeInterval 60 60 24 daysToAdd     As  addTimeInterval   is now deprecated

User · Answer

It s work       NSCalendar  calendar    NSCalendar currentCalendar       NSCalendarUnit unit   NSCalendarUnitDay      NSInteger value   1      NSDate  today    NSDate date       NSDate  tomorrow    calendar dateByAddingUnit unit value value toDate today options NSCalendarMatchStrictly

User · Answer

NSDate  now    NSDate date   NSCalendar  calendar     NSCalendar alloc  initWithCalendarIdentifier NSGregorianCalendar   NSDateComponents  components    calendar components NSYearCalendarUnit NSMonthCalendarUnit NSDayCalendarUnit fromDate now   NSDate  startDate    calendar dateFromComponents components   NSLog   StartDate        startDate    components day    1  NSDate  endDate    calendar dateFromComponents components   NSLog   EndDate        endDate

[objective-c] How do I add 1 day to an NSDate?

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