[LEAPSECS] php breaks if UTC has no leap seconds?

[Warner Losh]

On 12/09/2010 18:30, Warner Losh wrote:

> On 12/09/2010 17:35, Rob Seaman wrote:

>> On Dec 9, 2010, at 3:53 PM, Steve Allen wrote:

>>

>>> This is the first example I've come across where a widely used API 

>>> will break if UTC does not continue to have leap seconds.

>> Has anyone even considered a Y2K style inventory?

>>

>> Absence of evidence is not...oh, what's the point?

> Everybody said y2k was going to break everything.  In the end, it was 

> a non-event :)  Apples are much redder than oranges, but that might 

> not be a valid comparison.

>

> We know the class of APIs that UTC is going to introduce errors into 

> will be.  Astronomical events like these will degrade in accuracy over 

> time, unless DUT1 is also passed in.  Technically, it needs to be 

> passed in now, but the error is only second or so without it, so 

> nobody cares today.  But the correction could easily be subtracted as 

> DUT1 grows...

>

> In fact, php could query what DUT1 is and make the corrections w/o any c

stupid mouse...

In fact, php could query what DUT1 is and make the corrections w/o any 
changes to the program API.

Warner

>

> Warner