iOS Getting The Unix Time

[macprogrammer80]

What is the quickest way of getting the Unix time with the iPhone?

 

[kainjow]

time(NULL) ?

 

[Guiyon]

If you want to use Cocoa you can call

[[NSDate date] timeSince1970]

for the Unix epoch (00:00:00 GMT, 01/01/1970) or

[[NSDate date] timeSinceReferenceDate]

for the Mac OS X epoch (00:00:00 GMT, 01/01/2001). Both of these return an NSTimeInterval type (which is really just a typedef'd double and measured in seconds).

 

[CaptSaltyJack]

Do not use epoch time. It will be completely broken in 2038.

I'm kidding. I mean, it WILL be broken in 2038, but obviously that's 29 years from now.

 

[Guiyon]

Do not use epoch time. It will be completely broken in 2038.

I'm kidding. I mean, it WILL be broken in 2038, but obviously that's 29 years from now.

Not really. Most operating systems that use epoch time are moving to a 64-bit wide time_t instead of a 32-bit one so it's really a non-issue. You may want to then want to worry about the 64 bit value overflowing but I'm relatively sure you should be more concerned with the sun burning out. This is a non-issue when using the Cocoa API as it uses a double to represent the time.