To Time Stamp

[SercoSteveB]

What is Timestamp Out following execution of the VI?

a) 00:00:00.000 DD/MM/YYYY

b) 00:00:00.000 00/00/1904

c) 00:00:00.000 01/01/1901

d) 00:00:00.000 01/01/1904

[DesasterMaster]

A

[mini09]

A

[Thoric]

Without checking, I'm going to guess D, possibly C (I can never remember the LabVIEW clock base!).

[SercoSteveB]

This one was a surprise to me!!!!!

[crossrulz]

The display shows A, but the value should be D (assuming UTC time).  1 second on my computer shows 07:00:01.000 12/31/1903.  I'm in Eastern Time Zone, which is UTC-5 hours.

NI used 1904 since it was the first leap year in the century.  1900 actually was not a leap year and it caused all kinds of problems with software that had their epochs set to 1900.

[Thoric]

Interesting follow up:

[crossrulz]

Expand the display...

[Thoric]

It's more instructive from the UK where UTC is the locale time:

This is literally, therefore, the closest you can get to 00:00:00 01/01/1904 without the timestamp showing instead DD/MM/YYYY. Clearly true zero is a special case considered to be a non-timestamp (null).

[dellmore]

A

[SercoSteveB]

Awesome crossrulz & Thoric, thanks

[MrStevenUND]

I was sure it was D until I read everyone else's responses.

[LordNobady]

I like this question.

First guess was C. acording to the comments it is A. 0 as a special not initialized case I like it.

[Manu1991]

A

[SercoSteveB]

Answer: A.  Nice one Dennis Amelung, gnshmrthy, crossrulz, dellmore & Manu1991.

Some great stuff in this thread, thanks to crossrulz & Thoric

[SUYAM]

A

[ashwinilele]

I leanrt new things .

Thanks crossrulz & Thoric