How to convert Unix date from server to Date, and formatting it to timezone current
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I have fetched a Unix date string from the server, which I want to format to a Date with current timezone.
if let endDate = json["EndTime"].string {
self.endTime = self.convertDate(dateString: endDate as
NSString)
}
// dateString format = "/Date(1542600000000+0100)/"
func convertDate(dateString:NSString) -> Date{
let startIndex = dateString.range(of: "(").location + 1
let endIndex = dateString.range(of: ")").location
let range = NSRange(location: startIndex, length: endIndex-
startIndex)
let milliseconds = (dateString.substring(with: range) as
NSString).longLongValue
let interval = TimeInterval(milliseconds / 1000)
let date = Date(timeIntervalSince1970: interval)
return date
}
I successfully get the timeIntervalSince1970, but when starting to format the date it goes wrong. When formating it to string from date I get the correct datestring, but when I format string to date, the date is one hour behind. I am aware of that this probably has something to do with the timezone in some way, but I can’t get it right.
The expected output should be: 2018-11-19 17:00:00
Actual output is: 2018-11-19 16:00:00
The date should be formatted based on the timezone of the users device
Thanks for any help in advance!
ios swift date timezone
asked Nov 22 at 15:33
kMose
317
|
show 5 more comments
up vote
-3
down vote
favorite
I have fetched a Unix date string from the server, which I want to format to a Date with current timezone.
if let endDate = json["EndTime"].string {
self.endTime = self.convertDate(dateString: endDate as
NSString)
}
// dateString format = "/Date(1542600000000+0100)/"
func convertDate(dateString:NSString) -> Date{
let startIndex = dateString.range(of: "(").location + 1
let endIndex = dateString.range(of: ")").location
let range = NSRange(location: startIndex, length: endIndex-
startIndex)
let milliseconds = (dateString.substring(with: range) as
NSString).longLongValue
let interval = TimeInterval(milliseconds / 1000)
let date = Date(timeIntervalSince1970: interval)
return date
}
I successfully get the timeIntervalSince1970, but when starting to format the date it goes wrong. When formating it to string from date I get the correct datestring, but when I format string to date, the date is one hour behind. I am aware of that this probably has something to do with the timezone in some way, but I can’t get it right.
The expected output should be: 2018-11-19 17:00:00
Actual output is: 2018-11-19 16:00:00
The date should be formatted based on the timezone of the users device
Thanks for any help in advance!
ios swift date timezone
asked Nov 22 at 15:33
kMose
317
1
What’s the point of the date formatter? What’s the point of converting the Date to String to Date? And you need to provide specific details. Show the exact input, the exact output, and the desired output.
– rmaddy
Nov 22 at 15:38
I'm quite certain what you have is not an Unix timestamp
– mag_zbc
Nov 22 at 15:38
Please add an example ofdateString. And don't useNSStringin Swift.
– vadian
Nov 22 at 15:39
This is a really poor question. As rmaddy says, you need to show an actual input date string and the desired output date string format, tell us the time zone you are converting to, and tell us how you conclude that the date is one hour off. (You say when you format the string to a date the hour is off, but why do you think that? ADateobject doesn't have a time zone, and the default logging will display it in UTC.)
– Duncan C
Nov 22 at 16:01
I have now edited the question now
– kMose
Nov 22 at 16:42
|
show 5 more comments
up vote
-3
down vote
favorite
up vote
-3
down vote
favorite
I have fetched a Unix date string from the server, which I want to format to a Date with current timezone.
if let endDate = json["EndTime"].string {
self.endTime = self.convertDate(dateString: endDate as
NSString)
}
// dateString format = "/Date(1542600000000+0100)/"
func convertDate(dateString:NSString) -> Date{
let startIndex = dateString.range(of: "(").location + 1
let endIndex = dateString.range(of: ")").location
let range = NSRange(location: startIndex, length: endIndex-
startIndex)
let milliseconds = (dateString.substring(with: range) as
NSString).longLongValue
let interval = TimeInterval(milliseconds / 1000)
let date = Date(timeIntervalSince1970: interval)
return date
}
I successfully get the timeIntervalSince1970, but when starting to format the date it goes wrong. When formating it to string from date I get the correct datestring, but when I format string to date, the date is one hour behind. I am aware of that this probably has something to do with the timezone in some way, but I can’t get it right.
The expected output should be: 2018-11-19 17:00:00
Actual output is: 2018-11-19 16:00:00
The date should be formatted based on the timezone of the users device
Thanks for any help in advance!
ios swift date timezone
asked Nov 22 at 15:33
kMose
317
I have fetched a Unix date string from the server, which I want to format to a Date with current timezone.
if let endDate = json["EndTime"].string {
self.endTime = self.convertDate(dateString: endDate as
NSString)
}
// dateString format = "/Date(1542600000000+0100)/"
func convertDate(dateString:NSString) -> Date{
let startIndex = dateString.range(of: "(").location + 1
let endIndex = dateString.range(of: ")").location
let range = NSRange(location: startIndex, length: endIndex-
startIndex)
let milliseconds = (dateString.substring(with: range) as
NSString).longLongValue
let interval = TimeInterval(milliseconds / 1000)
let date = Date(timeIntervalSince1970: interval)
return date
}
I successfully get the timeIntervalSince1970, but when starting to format the date it goes wrong. When formating it to string from date I get the correct datestring, but when I format string to date, the date is one hour behind. I am aware of that this probably has something to do with the timezone in some way, but I can’t get it right.
The expected output should be: 2018-11-19 17:00:00
Actual output is: 2018-11-19 16:00:00
The date should be formatted based on the timezone of the users device
Thanks for any help in advance!
ios swift date timezone
ios swift date timezone
asked Nov 22 at 15:33
kMose
317
asked Nov 22 at 15:33
kMose
317
edited Nov 22 at 18:33
asked Nov 22 at 15:33
kMose
317
asked Nov 22 at 15:33
kMose
317
asked Nov 22 at 15:33
kMose
317
317
1
What’s the point of the date formatter? What’s the point of converting the Date to String to Date? And you need to provide specific details. Show the exact input, the exact output, and the desired output.
– rmaddy
Nov 22 at 15:38
I'm quite certain what you have is not an Unix timestamp
– mag_zbc
Nov 22 at 15:38
Please add an example ofdateString. And don't useNSStringin Swift.
– vadian
Nov 22 at 15:39
This is a really poor question. As rmaddy says, you need to show an actual input date string and the desired output date string format, tell us the time zone you are converting to, and tell us how you conclude that the date is one hour off. (You say when you format the string to a date the hour is off, but why do you think that? ADateobject doesn't have a time zone, and the default logging will display it in UTC.)
– Duncan C
Nov 22 at 16:01
I have now edited the question now
– kMose
Nov 22 at 16:42
|
show 5 more comments
1
What’s the point of the date formatter? What’s the point of converting the Date to String to Date? And you need to provide specific details. Show the exact input, the exact output, and the desired output.
– rmaddy
Nov 22 at 15:38
I'm quite certain what you have is not an Unix timestamp
– mag_zbc
Nov 22 at 15:38
Please add an example ofdateString. And don't useNSStringin Swift.
– vadian
Nov 22 at 15:39
This is a really poor question. As rmaddy says, you need to show an actual input date string and the desired output date string format, tell us the time zone you are converting to, and tell us how you conclude that the date is one hour off. (You say when you format the string to a date the hour is off, but why do you think that? ADateobject doesn't have a time zone, and the default logging will display it in UTC.)
– Duncan C
Nov 22 at 16:01
I have now edited the question now
– kMose
Nov 22 at 16:42
1
1
What’s the point of the date formatter? What’s the point of converting the Date to String to Date? And you need to provide specific details. Show the exact input, the exact output, and the desired output.
– rmaddy
Nov 22 at 15:38
What’s the point of the date formatter? What’s the point of converting the Date to String to Date? And you need to provide specific details. Show the exact input, the exact output, and the desired output.
– rmaddy
Nov 22 at 15:38
I'm quite certain what you have is not an Unix timestamp
– mag_zbc
Nov 22 at 15:38
I'm quite certain what you have is not an Unix timestamp
– mag_zbc
Nov 22 at 15:38
Please add an example of
dateString. And don't use NSString in Swift.– vadian
Nov 22 at 15:39
Please add an example of
dateString. And don't use NSString in Swift.– vadian
Nov 22 at 15:39
This is a really poor question. As rmaddy says, you need to show an actual input date string and the desired output date string format, tell us the time zone you are converting to, and tell us how you conclude that the date is one hour off. (You say when you format the string to a date the hour is off, but why do you think that? A
Date object doesn't have a time zone, and the default logging will display it in UTC.)– Duncan C
Nov 22 at 16:01
This is a really poor question. As rmaddy says, you need to show an actual input date string and the desired output date string format, tell us the time zone you are converting to, and tell us how you conclude that the date is one hour off. (You say when you format the string to a date the hour is off, but why do you think that? A
Date object doesn't have a time zone, and the default logging will display it in UTC.)– Duncan C
Nov 22 at 16:01
I have now edited the question now
– kMose
Nov 22 at 16:42
I have now edited the question now
– kMose
Nov 22 at 16:42
|
show 5 more comments
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1
What’s the point of the date formatter? What’s the point of converting the Date to String to Date? And you need to provide specific details. Show the exact input, the exact output, and the desired output.
– rmaddy
Nov 22 at 15:38
I'm quite certain what you have is not an Unix timestamp
– mag_zbc
Nov 22 at 15:38
Please add an example of
dateString. And don't useNSStringin Swift.– vadian
Nov 22 at 15:39
This is a really poor question. As rmaddy says, you need to show an actual input date string and the desired output date string format, tell us the time zone you are converting to, and tell us how you conclude that the date is one hour off. (You say when you format the string to a date the hour is off, but why do you think that? A
Dateobject doesn't have a time zone, and the default logging will display it in UTC.)– Duncan C
Nov 22 at 16:01
I have now edited the question now
– kMose
Nov 22 at 16:42