Here is the sample code from test.tex: http://texblog.org/2012/05/14/list-of-symbols-or-abbreviations-nomenclature/
\documentclass{article}
\usepackage{nomencl}
\makenomenclature
\renewcommand{\nomname}{Time Zones}
\begin{document}
UTC\nomenclature{UTC}{Coordinated Universal Time} is 3 hours behind ADT\nomenclature{ADT}{Atlantic Daylight Time} and 10 hours ahead of EST\nomenclature{EST}{Eastern Standard Time}.
\printnomenclature
\small\hfill Created by http://texblog.org
\end{document}
I ran this on TexStudio. pdfLatex --> MakeIndex --> pdfLatex
Errors when I ran MakeIndex:
Process started: makeindex.exe "test".idx
Input index file test.idx not found. Usage: makeindex.exe [-ilqrcgLT] [-s sty] [-o ind] [-t log] [-p num] [idx0 idx1 ...]
Process exited with error(s)
Errors when I ran pdfLatex
No file test.nls.
Thank you for your help!

