examples/recalendar.html at master · chinhdo/examples · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>2026 Calendar - Retirement Countdown</title>
  <!-- <link href="https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css" rel="stylesheet"> -->
   <script src="https://cdn.tailwindcss.com"></script>
  <style>
    .crossed-out { text-decoration: line-through; color: #a0aec0; }
    .retirement { background: #fbbf24; color: #1a202c !important; font-weight: bold; border-radius: 0.375rem; }
    .today { background: #3b82f6; color: #fff !important; font-weight: bold; border-radius: 0.375rem; box-shadow: 0 0 0 2px #2563eb; }
    .month-first { background: rgba(148, 163, 184, 0.22); color: #e5e7eb !important; border-radius: 0.375rem; }
  </style>
</head>
<body class="bg-slate-950 text-gray-100 min-h-screen">
  <div class="container mx-auto py-10">
    <h1 class="text-2xl font-bold mb-10 text-center">2026 Calendar</h1>
    <div id="calendar" class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6"></div>

    <div class="mt-10">
      <div class="mx-auto max-w-xl bg-gray-900/60 border border-white/10 rounded-lg px-4 py-3 text-center">
        <div class="text-xs uppercase tracking-wide text-gray-400">Countdown to Retirement (Oct 1, 2026)</div>
        <div id="bottom-countdown" class="mt-1 text-lg font-semibold tabular-nums"></div>
      </div>
    </div>

    <div class="mt-4">
      <div class="mx-auto max-w-xl bg-gray-900/60 border border-white/10 rounded-lg px-4 py-3 text-center">
        <div class="text-xs uppercase tracking-wide text-gray-400">Countdown to Oct 1, 2043</div>
        <div id="bottom-countdown-2043" class="mt-1 text-lg font-semibold tabular-nums"></div>
      </div>
    </div>
  </div>
  <script>
    // Use the real current date
    const now = new Date();
    // Only highlight today if it's in 2026
    const today = (now.getFullYear() === 2026) ? new Date(now.getFullYear(), now.getMonth(), now.getDate()) : null;
    const retirementDate = new Date(2026, 9, 1); // Oct 1, 2026
    const months = [
      'January', 'February', 'March', 'April', 'May', 'June',
      'July', 'August', 'September', 'October', 'November', 'December'
    ];

    const msPerDay = 24 * 60 * 60 * 1000;

    function createCalendar(year) {
      let html = '';
      for (let m = 0; m < 12; m++) {
        let firstDay = new Date(year, m, 1);
        let lastDay = new Date(year, m + 1, 0);
        html += `<div class="bg-gray-900 rounded-lg shadow p-3">
          <div class="text-base font-bold mb-1 text-center">${months[m]}</div>
          <div class="grid grid-cols-7 gap-1 text-[11px] text-center">
            <div>Sun</div><div>Mon</div><div>Tue</div><div>Wed</div><div>Thu</div><div>Fri</div><div>Sat</div>
          </div>
          <div class="grid grid-cols-7 gap-1 mt-1 text-center text-sm">`;
        // Empty days before first day
        for (let i = 0; i < firstDay.getDay(); i++) {
          html += `<div></div>`;
        }
        // Days of the month
        for (let d = 1; d <= lastDay.getDate(); d++) {
          let date = new Date(year, m, d);
          let classes = 'py-0.5';
          let content = d;

          if (today && date < today) {
            classes += ' crossed-out';
          }

          const isToday = !!(today &&
            date.getFullYear() === today.getFullYear() &&
            date.getMonth() === today.getMonth() &&
            date.getDate() === today.getDate());

          const isRetirement = (date.getFullYear() === 2026 && date.getMonth() === 9 && date.getDate() === 1);

          const isMonthFirst = (d === 1);

          if (isToday) {
            classes += ' today';
            const daysLeft = Math.ceil((retirementDate - today) / msPerDay);
            content = `${d} <span class='block text-xs font-normal'>(<span class='font-semibold'>${daysLeft}d</span>)</span>`;
          }
          else if (isRetirement) {
            classes += ' retirement';
            content = '🎉 ' + d;
          }
          else if (isMonthFirst) {
            // Don't highlight month-first dates after retirement
            if (date <= retirementDate) {
              classes += ' month-first';
              const daysLeftFromThis = Math.ceil((retirementDate - date) / msPerDay);
              content = `${d} <span class='block text-xs font-normal'>(<span class='font-semibold'>${daysLeftFromThis}d</span>)</span>`;
            }
          }

          html += `<div class="${classes}">${content}</div>`;
        }
        html += `</div></div>`;
      }
      return html;
    }

    function updateBottomCountdown() {
      // Countdown to start of Oct 1, 2026 in local time
      const target = new Date(2026, 9, 1, 0, 0, 0, 0);
      const now = new Date();
      const el = document.getElementById('bottom-countdown');
      if (!el) return;

      let diffMs = target - now;
      if (diffMs <= 0) {
        el.innerHTML =
          `<span class="font-semibold">0</span> <span class="text-xs font-normal text-gray-400">days</span> ` +
          `<span class="font-semibold">0</span> <span class="text-xs font-normal text-gray-400">hours</span> ` +
          `<span class="font-semibold">0</span> <span class="text-xs font-normal text-gray-400">minutes</span> ` +
          `<span class="font-semibold">0</span> <span class="text-xs font-normal text-gray-400">seconds</span>`;
        return;
      }

      const totalSeconds = Math.floor(diffMs / 1000);
      const days = Math.floor(totalSeconds / (60 * 60 * 24));
      const hours = Math.floor((totalSeconds % (60 * 60 * 24)) / (60 * 60));
      const minutes = Math.floor((totalSeconds % (60 * 60)) / 60);
      const seconds = totalSeconds % 60;

      el.innerHTML =
        `<span class="font-semibold">${days}</span> <span class="text-xs font-normal text-gray-400">days</span> ` +
        `<span class="font-semibold">${hours}</span> <span class="text-xs font-normal text-gray-400">hours</span> ` +
        `<span class="font-semibold">${minutes}</span> <span class="text-xs font-normal text-gray-400">minutes</span> ` +
        `<span class="font-semibold">${seconds}</span> <span class="text-xs font-normal text-gray-400">seconds</span>`;
    }

    function updateBottomCountdown2043() {
      // Countdown to start of Oct 1, 2043 in local time (days only)
      const target = new Date(2043, 9, 1, 0, 0, 0, 0);
      const now = new Date();
      const el = document.getElementById('bottom-countdown-2043');
      if (!el) return;

      let diffMs = target - now;
      if (diffMs <= 0) {
        el.innerHTML = `<span class="font-semibold">0</span> <span class="text-xs font-normal text-gray-400">days</span>`;
        return;
      }

      const totalDays = Math.floor(diffMs / (1000 * 60 * 60 * 24));
      el.innerHTML = `<span class="font-semibold">${totalDays}</span> <span class="text-xs font-normal text-gray-400">days</span>`;
    }

    document.getElementById('calendar').innerHTML = createCalendar(2026);
    updateBottomCountdown();
    updateBottomCountdown2043();
    setInterval(() => {
      updateBottomCountdown();
      updateBottomCountdown2043();
    }, 1000);
  </script>
</body>
</html>