Millisecond clock resolution for DateAndTime now

stéphane ducasse ducasse at iam.unibe.ch
Mon Sep 20 06:33:42 UTC 2004


avi what was the reason not having it in?

Stef
On 19 sept. 04, at 23:50, Avi Bryant wrote:

>
> On Sep 19, 2004, at 11:34 PM, John Pierce wrote:
>
>> Hi all,
>>
>> I am trying to make sure I am not missing something, but I really
>> would like DateAndTime now to return the current date/time with
>> millisecond clock precision.  I know there has been a lot of
>> discussions on this in the past with folks desiring nanosecond
>> precision -- but how about just millisecond precision from the system
>> clock.
>>
>> Am I overlooking something or is this just not implemented on  
>> DateAndTime now?
>
> The problem is that you don't know what the offset is between the  
> millisecond clock value and the current time in seconds.  The only way  
> is to watch the millisecond clock and try to figure out what the value  
> is when the second clock ticks over.  I posted a changeset that does  
> this calibration and gives DateAndTime now millisecond precision, but  
> at the time the decision was not to harvest it.  You may still find it  
> useful, however:
>
> http://lists.squeakfoundation.org/pipermail/squeak-dev/2004-February/ 
> 074400.html
>
> Avi
>
>




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