Welcome to week 1 of 2026!

What, week 1 of 2026 is in 2025? Yes: the &ldquo;first week of 2026&rdquo; starts on the Monday of the first week that has at least 4 days that fall in 2026, AKA the week with the first Thursday of the year. &#xA; Since years don&rsquo;t have an integer number of weeks, a year has either 52 or 53 weeks - so you can say we have &rsquo;leap weeks&rsquo; sometimes. &#xA; This is all laid out in…