Why does date only object always has 16:00:00 time? instead of 00:00:00

Question

chitgoks OP

Created Feb ’23

Replies 1

Boosts 0

Participants 2

So ive read there is no feature in the Foundation package that outputs a date only object.

Ive tried variations seen in forum posts. One of them is like this.

But i am confused why the output is always 16:00:00 +0000 for the time instead of 00:00:00 +0000?

This is the code

Calendar.current.date(bySettingHour: 0, minute: 0, second: 0, of: Date())!

16:00:00 is 4PM. Instead of 12:00AM

When I run it in this site online swift playground https://online.swiftplayground.run/

i get this output 2023-02-26 23:00:00 +0000

I figure this could be because of timezone. But is there a way to get a date object where the value of time is midnight? 00:00:00?

Thoughts?

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Answer 1

Claude31 OP

Feb ’23

Accepted Answer

It has to do with TimeZone.

Consider the following code:

let f = DateFormatter()
f.timeZone = TimeZone(identifier: "UTC")
f.dateFormat = "yyyy/MM/dd HH:mm:ss"
let time = Calendar.current.date(bySettingHour: 0, minute: 0, second: 0, of: Date())!
var timeString = f.string(from: time)
print("UTC", timeString)
f.timeZone = TimeZone(identifier: "Europe/Paris")
timeString = f.string(from: time)
print("Paris", timeString)

You'll get:

UTC 2023/02/26 23:00:00
Paris 2023/02/27 00:00:00

Get all time zones here: https://stackoverflow.com/questions/47494222/getting-the-city-country-list-in-ios-time-zone

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