It appears to be the front page story at the top in the right-most column:

The resolution of the PDF isn't good enough for a solid OCR read, but I'm working on getting something with the help of Google Translate's camera. At first glance, no mention of a specific transition time jumps out at me, but the 5 May 2018 transition date is pretty easy to spot as the second item in the decree, shown below the article.

--
Tim Parenti

On 29 April 2018 at 22:03, Paul Eggert <eggert@cs.ucla.edu> wrote:

Seo Sanghyeon wrote:

Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan.
https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf

I won't translate, but even if you don't know Korean it should be easy
to confirm that the transition date is 2018-05-05. 2018 is Juche 107

Is the transition at 00:00 local time (midnight at the start of 2018-05-05), or at some other time of the day?

Also, that's a 6-page newspaper with a lot of fine print. Could you please let us know the page and column number?

Thanks.