Delay Certificate (遅延証明書 - Chien Shōmeisho)
The official slips of paper (or digital PDFs) issued by train operators when trains are delayed by even a few minutes. Submitting this to schools or employers excuses your lateness, preventing academic or career penalties.
Rooted in Japan's hyper-punctual culture where a train arriving 1 minute late is considered a failure. The railway issues these slips to take full public responsibility for the passengers' lateness.
Collect a small green/gray slip of paper from staff standing at the ticket exit gates when delayed, or download a digital version directly from the train operator's official website to present to your boss.
What is the purpose of the 'Delay Certificate' issued by station staff?