bug of addtodate when combining with now?

addtodate function returns very odd results when combined with now.

>>datestr(now,'yyyymmdd')
ans =
20140814
>>datestr(addtodate(now,-1,'day'),'yyyymmdd')
ans =
19700101
>>datestr(addtodate(now,1,'day'),'yyyymmdd')
ans =
19700101

Is that a known bug? Or have I missed something obvious?

[Christopher Berry]

Yucheng,

I am not able to reproduce this:

>> datestr(addtodate(now,1,'day'),'yyyy-mm-dd')
ans =
2014-08-15

>> datestr(addtodate(now,-1,'day'),'yyyy-mm-dd')
ans =
2014-08-13

What version of MATLAB are you using? How about your OS? You can check this by typing:

>> ver

[dpb]

Also

which now
which addtodate

just to be sure haven't aliased something somehow.

If after all the sanity checks and 'clear all' still does it, it's bug report time, fur shure...

Also, indeed can't reproduce it here, either R2012b which is getting somewhat date, granted...

[Yucheng]

Thanks for looking into the problem. It is a bit frustrating that I cannot reproduce the same problem today when I tried again (even though I have not even restarted my matlab):(