How to convert date from one format to another? Need to get date to "Tue Apr 3 22:10:06 2018" format

Question

How to convert "2018-04-03 22:10:06" to "Tue Apr 3 22:10:06 2018"? Obviously not those specific dates but that format.

I found this solution:

How to convert date format from dd/MM/YYYY to YYYY-MM-dd in swift

but I am unable to get it to the exact format.

`yyyy-MM-dd HH:mm:ss` would seem to be in the input, `E MMM d HH:mm:ss yyyy` would seem to be the output (referenced from [nsdateformatter.com](http://nsdateformatter.com) — MadProgrammer, May 10 '18 at 01:22

MadProgrammer · Accepted Answer · 2018-05-10T01:26:55.460

0

So, I just threw this into Playgrounds

let inFormat = DateFormatter()
inFormat.dateFormat = "yyyy-MM-dd HH:mm:ss"

let date = inFormat.date(from: "2018-04-03 22:10:06")

let outFormat = DateFormatter()
outFormat.dateFormat = "E MMM d HH:mm:ss yyyy"
outFormat.string(from: date!)

It eventually outputs Tue Apr 3 22:10:06 2018

The formats were initial referenced from nsdateformatter.com

This, of course, will use the current system TimeZone and Locale, so you may want to do some more investigation into that

edited May 10 '18 at 01:26

answered May 10 '18 at 01:26

MadProgrammer

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Note that you need to set the locale to en_US_POSIX when parsing fixed date formats – Leo Dabus May 10 '18 at 01:26
@LeoDabus Can you explain why? I have no issue, just want to know more – MadProgrammer May 10 '18 at 01:27
Otherwise it will be affected by the device locale and user settings and might crash if the device settings is set to 12hour (am/pm format) – Leo Dabus May 10 '18 at 01:27
@LeoDabus Ah, point - I did add that at the end as well "indirectly" – MadProgrammer May 10 '18 at 01:28
Btw generally when parsing date strings you should use UTC timezone instead of current – Leo Dabus May 10 '18 at 01:29
@LeoDabus Agreed, I've had it up to my back teeth of date/time values been represented as string without timezones and including "English" day/month values - there are standards for this people! – MadProgrammer May 10 '18 at 01:44

How to convert date from one format to another? Need to get date to "Tue Apr 3 22:10:06 2018" format

1 Answers1