https://widgita.xyz/tags/scheduling/Recent content in Scheduling on WidgitaHugoen-usSun, 19 Apr 2026 00:00:00 +0000https://widgita.xyz/posts/2026/04/stop-second-guessing-cron-expressions/Sun, 19 Apr 2026 00:00:00 +0000https://widgita.xyz/posts/2026/04/stop-second-guessing-cron-expressions/<p>Cron is one of those things I&rsquo;ve been using for twenty-odd years and still occasionally stare at for thirty seconds before committing. Is <code>*/15 9-17 * * 1-5</code> what I think it is? Does <code>0 0 * * 0</code> fire at midnight Sunday or Monday? And does that depend on the box&rsquo;s timezone or UTC? Most of the time you can squint and reason your way through it, but &ldquo;most of the time&rdquo; is exactly the kind of confidence level you don&rsquo;t want when the cron in question is the nightly DB backup.</p>