How to get NSDate for 00:00 on the day of [NSDate date]?

Question

I need to get an NSDate object for 00:00(beginning of the day) from [NSDate date], let\'s say if currently it is 11:30am(returned by [NSDate date]), on 01/06/2012, now I nee

Answer 1

It's very easy to do this in iOS8 using startOfDayForDate:

let date = NSDate() 
let calendar = NSCalendar.currentCalendar(calendarIdentifier: NSGregorianCalendar)
let dateAtStartOfDay = calendar.startOfDayForDate(date)

OR you may do it in the traditional way in Swift as follows:

let date = NSDate()
let calendar = NSCalendar.currentCalendar(calendarIdentifier: NSGregorianCalendar)
// Use a mask to extract the required components from today's date
let components = calendar.components(.CalendarUnitYear | .CalendarUnitMonth | .CalendarUnitDay, fromDate: date)
let dateAtStartOfDay = calendar.dateFromComponents(components)!
print(dateAtStartOfDay) 

(Note: NSDates are stored relative to GMT. So print will display the relative local time. A clear understanding of TimeZone's is essential to using NSDates properly.)