How to Convert UNIX epoc time to Date and time in ios swift

问题

I'm trying to convert the UNIX epoc time to datetime format using the below code

var epocTime = NSTimeInterval(1429162809359)

let myDate = NSDate(timeIntervalSince1970: epocTime)
println("Converted Time \(myDate)")

the actual result is (Thu, 16 Apr 2015 05:40:09 GMT) but am getting something like (47258-05-14 05:15:59 +0000) Can anyone please tel me how to achieve this.

回答1:

update: Xcode 8.2.1 • Swift 3.0.2

You need to convert it from milliseconds dividing it by 1000:

let epocTime = TimeInterval(1429162809359) / 1000

let myDate = Date(timeIntervalSince1970:  epocTime)   // "Apr 16, 2015, 2:40 AM"
print("Converted Time \(myDate)")         // "Converted Time 2015-04-16 05:40:09 +0000\n"

回答2:

It seems that your time information is "milliseconds since 1970". Should have been straightforward to figure out: We are about 46 years after 1970, but your date is about 45,000 after 1970.

NSTimeInterval is based on SECONDS.

Convert your number to double and divide by 1000.0.

来源：https://stackoverflow.com/questions/29670585/how-to-convert-unix-epoc-time-to-date-and-time-in-ios-swift