Sample Mac OS X `launchd` script to run DITA builds once at 9AM and every hour thereafter

net.infotexture.autobuild_workdays.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>net.infotexture.autobuild_workdays</string>
    <key>ProgramArguments</key>
    <array>
      <string>/bin/bash</string>
      <string>/Users/username/projectdir/scripts/run-dita-build.sh</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>StartCalendarInterval</key><!-- ◄ Start job at specified times -->
    <dict>
      <key>Hour</key>
      <integer>9</integer>          <!-- ◄ Start at 09:00 AM -->
      <key>Minute</key>
      <integer>0</integer>
    </dict>
    <key>StartInterval</key>        <!-- ◄ Start job in regular intervals -->
    <integer>3600</integer>         <!-- ◄ Start every 3600 seconds (1 h) -->
  </dict>
</plist>