How to get time (hour, minute, second) in Swift 3 using NSDate?
NsdateSwift3Nsdate Problem Overview
How can you determine the hour, minute and second from NSDate class in Swift 3?
In Swift 2:
let date = NSDate()
let calendar = NSCalendar.currentCalendar()
let components = calendar.components(.Hour, fromDate: date)
let hour = components.hour
Swift 3?
Nsdate Solutions
Solution 1 - Nsdate
In Swift 3.0 Apple removed 'NS' prefix and made everything simple. Below is the way to get hour, minute and second from 'Date' class (NSDate alternate)
let date = Date()
let calendar = Calendar.current
let hour = calendar.component(.hour, from: date)
let minutes = calendar.component(.minute, from: date)
let seconds = calendar.component(.second, from: date)
print("hours = \(hour):\(minutes):\(seconds)")
Like these you can get era, year, month, date etc. by passing corresponding.
Solution 2 - Nsdate
Swift 4.2 & 5
// *** Create date ***
let date = Date()
// *** create calendar object ***
var calendar = Calendar.current
// *** Get components using current Local & Timezone ***
print(calendar.dateComponents([.year, .month, .day, .hour, .minute], from: date))
// *** define calendar components to use as well Timezone to UTC ***
calendar.timeZone = TimeZone(identifier: "UTC")!
// *** Get All components from date ***
let components = calendar.dateComponents([.hour, .year, .minute], from: date)
print("All Components : \(components)")
// *** Get Individual components from date ***
let hour = calendar.component(.hour, from: date)
let minutes = calendar.component(.minute, from: date)
let seconds = calendar.component(.second, from: date)
print("\(hour):\(minutes):\(seconds)")
Swift 3.0
// *** Create date ***
let date = Date()
// *** create calendar object ***
var calendar = NSCalendar.current
// *** Get components using current Local & Timezone ***
print(calendar.dateComponents([.year, .month, .day, .hour, .minute], from: date as Date))
// *** define calendar components to use as well Timezone to UTC ***
let unitFlags = Set<Calendar.Component>([.hour, .year, .minute])
calendar.timeZone = TimeZone(identifier: "UTC")!
// *** Get All components from date ***
let components = calendar.dateComponents(unitFlags, from: date)
print("All Components : \(components)")
// *** Get Individual components from date ***
let hour = calendar.component(.hour, from: date)
let minutes = calendar.component(.minute, from: date)
let seconds = calendar.component(.second, from: date)
print("\(hour):\(minutes):\(seconds)")
Solution 3 - Nsdate
let date = Date()
let units: Set<Calendar.Component> = [.hour, .day, .month, .year]
let comps = Calendar.current.dateComponents(units, from: date)
Solution 4 - Nsdate
Swift 4
let calendar = Calendar.current
let time=calendar.dateComponents([.hour,.minute,.second], from: Date())
print("\(time.hour!):\(time.minute!):\(time.second!)")
Solution 5 - Nsdate
In Swift 3 you can do this,
let date = Date()
let hour = Calendar.current.component(.hour, from: date)
Solution 6 - Nsdate
Swift 5+
extension Date {
func get(_ type: Calendar.Component)-> String {
let calendar = Calendar.current
let t = calendar.component(type, from: self)
return (t < 10 ? "0\(t)" : t.description)
}
}
Usage:
print(Date().get(.year)) // => 2020
print(Date().get(.month)) // => 08
print(Date().get(.day)) // => 18
Solution 7 - Nsdate
let hours = time / 3600
let minutes = (time / 60) % 60
let seconds = time % 60
return String(format: "%0.2d:%0.2d:%0.2d", hours, minutes, seconds)
Solution 8 - Nsdate
For best useful I create this function:
func dateFormatting() -> String {
let date = Date()
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "EEEE dd MMMM yyyy - HH:mm:ss"//"EE" to get short style
let mydt = dateFormatter.string(from: date).capitalized
return "\(mydt)"
}
You simply call it wherever you want like this:
print("Date = \(self.dateFormatting())")
this is the Output:
Date = Monday 15 October 2018 - 17:26:29
if want only the time simply change :
dateFormatter.dateFormat = "HH:mm:ss"
and this is the output:
Date = 17:27:30
and that's it...
Solution 9 - Nsdate
swift 4
==> Getting iOS device current time:-
print(" ---> ",(Calendar.current.component(.hour, from: Date())),":",
(Calendar.current.component(.minute, from: Date())),":",
(Calendar.current.component(.second, from: Date())))
output: ---> 10 : 11: 34
Solution 10 - Nsdate
This might be handy for those who want to use the current date in more than one class.
extension String {
func getCurrentTime() -> String {
let date = Date()
let calendar = Calendar.current
let year = calendar.component(.year, from: date)
let month = calendar.component(.month, from: date)
let day = calendar.component(.day, from: date)
let hour = calendar.component(.hour, from: date)
let minutes = calendar.component(.minute, from: date)
let seconds = calendar.component(.second, from: date)
let realTime = "\(year)-\(month)-\(day)-\(hour)-\(minutes)-\(seconds)"
return realTime
}
}
Usage
var time = ""
time = time.getCurrentTime()
print(time) // 1900-12-09-12-59
Solution 11 - Nsdate
Swift 5+ Date
extension to get Int
value of any desired date component:
extension Date {
func component(_ component: Calendar.Component) -> Int {
Calendar.current.component(component, from: self)
}
}
Usage:
let now = Date()
print(now.component(.year)) // 2021
print(now.component(.month)) // 12
print(now.component(.day)) // 30