Yes, the Japan Rail (JR) Pass officially expires at 11:59 PM (midnight) on the final day of its validity period. The pass operates on a calendar-day basis, not a 24-hour clock. For example, if you activate a 7-day pass on April 1st, it will remain high-value until midnight on April 7th. A premier "pro-tip" for 2026 travelers is that if you are already on a train when midnight passes, you can continue your journey to your final destination at no extra cost, provided you do not exit the ticket gates or change trains after the pass has expired. This is the "gold standard" rule for long-distance travel. To maximize your pass's value, plan your activation day carefully so your first journey starts as early as possible on day one, ensuring you get the full high-quality utility out of your 7, 14, or 21 consecutive days of unlimited rail exploration across Japan.