Gist-Biblatex-Tester-DateTimeSorting-Mwe-Solution.tex

\documentclass[12pt,a4paper]{article}
\usepackage{a4wide}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Demo 
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\begin{filecontents}{\jobname.bib}
  % Sorting multiple works by author in year
  @article{barker_2016_turkey,
    author = {Barker, Anne},
    date = {2016-07-18T20:26:06+10:00},
    title = {Turkey Divided between Secular and {{Islamist}} Rule},
    urldate = {2016-07-24},
    journaltitle = {ABC News},
    entrysubtype = {newspaper}
  }
  
  @article{barker_2016_deep,
    author = {Barker, Anne},
    date = {2016-07-12},
    title = {'{{Deep}} Public Anger' over Daylight Slaying of {{Cambodian}} Activist},
    urldate = {2017-10-28},
    journaltitle = {ABC News},
    entrysubtype = {newspaper}
  }

  @article{barker_2016_yellow,
    author = {Barker, Anne},
    date = {2016-04-13},
    title = {Yellow Fever Outbreak Spreads amid Vaccine Shortage},
    urldate = {2017-10-28},
    journaltitle = {ABC News},
    entrysubtype = {newspaper}
  }

  @article{barker_2016_china,
    author = {Barker, Anne},
    date = {2016-02-24},
    title = {China Sends Fighter Jets to Disputed Island},
    urldate = {2017-10-28},
    journaltitle = {ABC News},
    entrysubtype = {newspaper}
  }


  @online{greenwald_2017_trump,
    author = {Greenwald, Glenn},
    title = {Trump's {{IRS}} Chief Was Smuggled through the {{Senate}} in a Unanimous Vote in a Private Room {{https://interc.pt/2yRmgFP}}~ by @lhfang @ryangrim},
    date = {2017-10-28T04:45:00},
    urldate = {2017-10-28},
    type = {Tweet},
    journaltitle = {@ggreenwald},
    shorttitle = {Trump's {{IRS}} Chief Was Smuggled through the {{Senate}} in a Unanimous Vote in a Private Room Https},
    url = {https://twitter.com/ggreenwald/status/924240653382496257},
  }
  
  @online{greenwald_2017_if,
    author = {Greenwald, Glenn},
    title = {If You Want to Revere {{FBI}} Directors, Prosecutors, {{CIA}}, Military Medals \& {{Bill Kristol}}, You Have That Right. {{Just}} Odd to Call It \#{{Resistance}}.},
    date = {2017-10-28T04:47:00},
    urldate = {2017-10-28},
    type = {Tweet},
    journaltitle = {@ggreenwald},
    url = {https://twitter.com/ggreenwald/status/924241127334703104},
  }
  
  
  @online{greenwald_2017_how,
    author = {Greenwald, Glenn},
    title = {How the {{U}}.{{K}}. Prosecuted a Student on Terrorism Charges for Downloading a Book {{https://interc.pt/2yQT1D7}}~ by @rj\_gallagher},
    date = {2017-10-28T04:44:00},
    urldate = {2017-10-28},
    type = {Tweet},
    journaltitle = {@ggreenwald},
    shorttitle = {How the {{U}}.{{K}}. Prosecuted a Student on Terrorism Charges for Downloading a Book Https},
    url = {https://twitter.com/ggreenwald/status/924240525460426752},
  }
  
  @online{greenwald_2017_we,
    author = {Greenwald, Glenn},
    title = {We Need a Guidebook for When It Is and Is Not "Appropriate" to Criticize Military Officials \& Veterans. {{The}} Standards Seem Quite Confusing.{{https://twitter.com/peterdaou/status/924101542986252288}}~…},
    date = {2017-10-28T04:38:00},
    urldate = {2017-10-28},
    type = {Tweet},
    journaltitle = {@ggreenwald},
    shorttitle = {We Need a Guidebook for When It Is and Is Not "Appropriate" to Criticize Military Officials \& Veterans. {{The}} Standards Seem Quite Confusing.Https},
    url = {https://twitter.com/ggreenwald/status/924238931754971136},
  }

\end{filecontents}

\PassOptionsToPackage{%
  alldates=ymd, 
  labeldate=ymd, 
  alldatesusetime=true, 
  labeldateusetime=true,
  alltimes=24h, 
  seconds=false, 
  timezones=true,
  datezeros=true,
  style=authoryear,
  sorting=nst,
  dashed=false,
  url=false,
  mergedate=maximum 
}{biblatex}
\usepackage{biblatex}

\addbibresource{\jobname.bib}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Solution
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% Sort by name, second (or finest available precision if seconds not available), title.
% 's' for 'Sort down to the second'.
% Timezones are ignored.
\DeclareSortingTemplate{nst}{
  \sort{
    \field{presort}
  }
  \sort[final]{
    \field{sortkey}
  }
  \sort{
    \field{sortname}
    \field{author}
    \field{editor}
    \field{translator}
    \field{sorttitle}
    \field{title}
  }
  \sort{
    \field{sortyear}
    \field{year}
  }
  \sort{
  \field[padside=left,padwidth=2,padchar=0]{month}
  \literal{00}
  }
  \sort{
    \field[padside=left,padwidth=2,padchar=0]{day}
    \literal{00}
  }
  \sort{
  \field[padside=left,padwidth=2,padchar=0]{hour}
  \literal{00}
  }
  \sort{
    \field[padside=left,padwidth=2,padchar=0]{minute}
    \literal{00}
  }
  \sort{
  \field[padside=left,padwidth=2,padchar=0]{second}
  \literal{00}
  }
  \sort{
    \field{sorttitle}
    \field{title}
  }
  \sort{
    \field{volume}
    \literal{0}
  }
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Support 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Remove indenting for ease of viewing.
\setlength{\parindent}{0pt}

\begin{document}

\section{Sorting multiple works by author in year}

Sorting test by day level precision, using newspaper articles:

\autocite{barker_2016_china} \citetitle{barker_2016_china} \\
\autocite{barker_2016_turkey} \citetitle{barker_2016_turkey}\\
\autocite{barker_2016_deep} \citetitle{barker_2016_deep}\\
\autocite{barker_2016_yellow} \citetitle{barker_2016_yellow}\\

Sorting test by time level precision, using an online entries (tweets):

\autocite{greenwald_2017_how}\\
\autocite{greenwald_2017_if}\\
\autocite{greenwald_2017_trump}\\
\autocite{greenwald_2017_we}\\

\printbibliography

\end{document}