Request for Improvement: All-Day Event Display Issue

Hello, I am currently using your calendar application and have encountered an issue that I would like to report. When I create an all-day event, it is sometimes displayed as spanning into the next day, even though it is intended to be a single-day event. This causes confusion and makes it difficult to manage my schedule accurately. I believe this may be related to how the application handles time boundaries or synchronization, and I would greatly appreciate it if this behavior could be reviewed and improved. Thank you for your support, and I look forward to your response. Best regards,