This question already has answers here:
Find difference in seconds between NSDates as integer using Swift
(7 answers)
Closed 4 years ago.
I am trying to get the number of SECONDS between two Dates.
for an example having a date like this:
let savedDate = Jun 25, 2018 at 12:48:09 AM -> (just printed as example date)
let currentDate = Date()
Can anyone help me understand how to find the number of second passed as a Double preferably?
Date#timeIntervalSince(_:) is probably what you're looking for.
Playground Example...
I modified the format so it would parse, but the basic concept works.
let formatter = DateFormatter()
formatter.dateFormat = "MMM dd, yyyy hh:mm:ss a"
let date = formatter.date(from: "Jun 25, 2018 12:48:09 AM")
if let date = date {
Date().timeIntervalSince(date)
}
Will output
29793.5867500305
Related
This question already has answers here:
Swift - Get local date and time
(11 answers)
Closed 1 year ago.
I was playing around with date formatter in swift, but the AM/PM thing is not working in my code.
import Foundation
let dtstr = "Tuesday, July 28, 2020 4:15:45 PM"
let formatter = DateFormatter()
formatter.dateFormat = "eeee, MMMM d, yyyy h:m:s a"
let date = formatter.date(from: dtstr)
print(date)
the output is this: Optional(2020-07-28 08:15:45 +0000). However, it should be 16:15:45 instead of this. Any idea why?
Thanks!
Date has no information about time zone, and default string representation is using a greenwich one. You can see it +0000 part in your string.
You can get description for your own time zone like this:
date.description(with: .current)
This question already has answers here:
Getting the difference between two Dates (months/days/hours/minutes/seconds) in Swift
(20 answers)
Closed 3 years ago.
I have output 2019-11-23 and today's date 2019-11-4. How do I calculate the number of days remaining for these two dates? the output should be
19d5h
Try using DateFormatter and DateComponents to get this working.
Get the Date instances from String using DateFormatter and then get day and hour components using DateComponents, i.e.
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"
if let d1 = dateFormatter.date(from: "2019-11-23"), let d2 = dateFormatter.date(from: "2019-11-4") {
let components = Calendar.current.dateComponents([.day, .hour], from: d2, to: d1)
print(components.day, components.hour)
}
This question already has answers here:
Getting date from [NSDate date] off by a few hours
(3 answers)
Closed 5 years ago.
I did an extension for Date that returns a formatted string:
extension Date {
var myFormattedDate : String {
let formatter = DateFormatter()
formatter.timeZone = TimeZone.current
formatter.dateFormat = "EEEE, MMMM d, y (HH:mm a)"
return formatter.string(for: self)!
}
}
On runtime, I set a breakpoint inside the myFormattedDate property.
po self printed:
2017-09-05 08:50:00 +0000
po formatter.string(for: self)! printed:
Tuesday, September 5, 2017 (11:50 AM)"
What could be the problem?
Thanks!
Printing a Date always returns an UTC time, regardless of the local time zone. Just avoid printing a Date object directly if you want to see the date with the proper time zone in your console.
This question already has answers here:
How to Convert UNIX epoch time to Date and time in ios swift
(3 answers)
Closed 2 years ago.
I am doing this in swift:
let date = NSDate(timeIntervalSince1970: 1432233446145.0)
println("date is \(date)")
The log gives me this:
date is 47355-09-02 23:55:45 +0000
Then I try to get an interval back out just for testing:
let tI = expirationDate.timeIntervalSinceDate(date)
println("tI = \(tI)")
I get:
tI = 0.0
What am I doing wrong?
I can seem to make the timeIntervalSince1970 call work properly. Is there any known issued with that in Swift, or am I missing something here?
1432233446145 most probably is a time interval given in milliseconds:
let date = NSDate(timeIntervalSince1970: 1432233446145.0/1000.0)
print("date is \(date)")
// date is 2015-05-21 18:37:26 +0000
Swift 3 and later:
let date = Date(timeIntervalSince1970: 1432233446145.0/1000.0)
I think your timestamp is incorrect. This results in your date being september 2nd, 47355.
If I use the following I get the date for (right about) now:
let date = NSDate(timeIntervalSince1970: 1431024488)
println("date is \(date)")
// "date is 2015-05-07 18:48:08 +0000"
The printed date is not a localized timestamp, so you'll have to do some localization of your own I suppose. An example:
let formatter = NSDateFormatter()
formatter.dateFormat = "dd-MM-yyyy HH:mm:ss"
println("formatted date is \(formatter.stringFromDate(date))")
// "formatted date is 07-05-2015 20:48:08"
And for completeness I also checked with an expiration date that's 1100 seconds larger than the initial date:
let expirationDate = NSDate(timeIntervalSince1970: 1431025588)
let diff = expirationDate.timeIntervalSinceDate(date)
println("expires in: \(diff)")
// "expires in: 1100.0"
So, the timeIntervalSince1970 seems to work fine, I think your interval was just not what you wanted it to be.
From your code and the log content follows:
date.isEqual(expirationDate)
--> Your stuff has just expired :-).
This question already has answers here:
How to Convert UNIX epoch time to Date and time in ios swift
(3 answers)
Closed 2 years ago.
I am doing this in swift:
let date = NSDate(timeIntervalSince1970: 1432233446145.0)
println("date is \(date)")
The log gives me this:
date is 47355-09-02 23:55:45 +0000
Then I try to get an interval back out just for testing:
let tI = expirationDate.timeIntervalSinceDate(date)
println("tI = \(tI)")
I get:
tI = 0.0
What am I doing wrong?
I can seem to make the timeIntervalSince1970 call work properly. Is there any known issued with that in Swift, or am I missing something here?
1432233446145 most probably is a time interval given in milliseconds:
let date = NSDate(timeIntervalSince1970: 1432233446145.0/1000.0)
print("date is \(date)")
// date is 2015-05-21 18:37:26 +0000
Swift 3 and later:
let date = Date(timeIntervalSince1970: 1432233446145.0/1000.0)
I think your timestamp is incorrect. This results in your date being september 2nd, 47355.
If I use the following I get the date for (right about) now:
let date = NSDate(timeIntervalSince1970: 1431024488)
println("date is \(date)")
// "date is 2015-05-07 18:48:08 +0000"
The printed date is not a localized timestamp, so you'll have to do some localization of your own I suppose. An example:
let formatter = NSDateFormatter()
formatter.dateFormat = "dd-MM-yyyy HH:mm:ss"
println("formatted date is \(formatter.stringFromDate(date))")
// "formatted date is 07-05-2015 20:48:08"
And for completeness I also checked with an expiration date that's 1100 seconds larger than the initial date:
let expirationDate = NSDate(timeIntervalSince1970: 1431025588)
let diff = expirationDate.timeIntervalSinceDate(date)
println("expires in: \(diff)")
// "expires in: 1100.0"
So, the timeIntervalSince1970 seems to work fine, I think your interval was just not what you wanted it to be.
From your code and the log content follows:
date.isEqual(expirationDate)
--> Your stuff has just expired :-).