VI of the Day (8/21/09)

Question

Inspired by a recent thread, it seems like a good day to explore how LV keeps track of time.  The function for today is "Date/Time to Seconds". 
You can find several interesting discussions on time by searching the forum (one of the most important LV skills you should master).
Why the heck 1904?  Is there a major problem looming in 2100, the Y2.1K bug?  Perhaps there is an earlier problem, when does the current system fail?
Can you pass timestamps to Excel and get the right date/time to show up?

Answer 1

Darin.K wrote:
Inspired by a recent thread, it seems like a good day to explore how LV keeps track of time.  The function for today is "Date/Time to Seconds". 
You can find several interesting discussions on time by searching the forum (one of the most important LV skills you should master).
Why the heck 1904?  Is there a major problem looming in 2100, the Y2.1K bug?  Perhaps there is an earlier problem, when does the current system fail?
Can you pass timestamps to Excel and get the right date/time to show up?
For Mega-Kudos*
Develop and post a VI for use by the community that will;
Given the current time return the of the time that represents the same time on the next calendar day.
To qualify the VI should;
Handle daylight savings time.
If the time today does not exist on the next day, it should coerce the time to following hour.
Notes:
Not all days have 24 hours. One has 23 and another has 25.
US Congress can change its time and time it minds** so the code can NOT assume DST will be the same in the future as it is now.
Did I miss any other rules or "gotchas"?
 Ben
* Well maybe not Mega-Kudos but at least deca-Kudos.
** No that is worded the way I intended.
Message Edited by Ben on 08-21-2009 12:39 PM
Ben Rayner
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