get current date from NSDate date but set the time to 10 00 am

Question

How can I reset the current date retrieved from  NSDate date  but then change the time to 10 00 in the morning

User · Accepted Answer

As with all date manipulation you have to use NSDateComponents and NSCalendar

NSDate *now = [NSDate date];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier: NSCalendarIdentifierGregorian];
NSDateComponents *components = [calendar components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay fromDate:now];
[components setHour:10];
NSDate *today10am = [calendar dateFromComponents:components];

in iOS8 Apple introduced a convenience method that saves a few lines of code:

NSDate *d = [calendar dateBySettingHour:10 minute:0 second:0 ofDate:[NSDate date] options:0];

Swift:

let calendar: NSCalendar! = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)
let now: NSDate! = NSDate()

let date10h = calendar.dateBySettingHour(10, minute: 0, second: 0, ofDate: now, options: NSCalendarOptions.MatchFirst)!

User · Answer

NSDate  currentDate    NSDate date   NSDateComponents  comps     NSDateComponents alloc  init    comps setHour 10   NSDate  date    gregorian dateByAddingComponents comps toDate currentDate  options 0    comps release     Not tested in xcode though

User · Answer

I just set the timezone with Matthias Bauch answer And it worked for me  else it was adding 18 30 min more   let cal  NSCalendar   NSCalendar currentCalendar   cal timeZone   NSTimeZone forSecondsFromGMT  0  let newDate  NSDate   cal dateBySettingHour 1  minute  0  second  0  ofDate  NSDate    options  NSCalendarOptions

User · Answer

You can use this method for any minute   hour   period  aka am pm  combination   -  NSDate   todayModifiedWithHours  NSString   hours                            minutes  NSString   minutes                          andPeriod  NSString   period       NSDate  todayModified   NSDate date       NSCalendar  calendar     NSCalendar alloc  initWithCalendarIdentifier NSGregorianCalendar        NSDateComponents  components    calendar components NSYearCalendarUnit NSMonthCalendarUnit NSDayCalendarUnit NSMinuteCalendarUnit fromDate todayModified         components setMinute minutes intValue        int hour   0       if   period uppercaseString isEqualToString   AM               if  hours intValue    12                hour   0                    else               hour   hours intValue                      else if   period uppercaseString isEqualToString   PM               if  hours intValue    12                hour   hours intValue   12                    else               hour   12                       components setHour hour        todayModified    calendar dateFromComponents components        return todayModified      Requested Example   NSDate  todayAt10AM    self todayModifiedWithHours   10                                             minutes   00                                           andPeriod   am

User · Answer

this nsdate used different format   NSDateFormatter  format     NSDateFormatter alloc  init    format setDateFormat   MMM dd  yyyy HH mm     NSDate  now     NSDate alloc  init    NSString  dateString    format stringFromDate now    NSDateFormatter  inFormat     NSDateFormatter alloc  init    inFormat setDateFormat   MMM dd  yyyy     NSDate  parsed    inFormat dateFromString dateString

[iphone] get current date from [NSDate date] but set the time to 10:00 am

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