Dear [Supervisor/Manager's Name], I am writing this letter to sincerely apologize for my tardiness in arriving to work on [date]. I understand the importance of punctuality, and I am deeply sorry for any inconvenience caused. The reason for my tardiness was [provide a detailed explanation of the reason]. Despite my utmost efforts to arrive on time, unforeseen circumstances hindered my ability to reach the workplace within the designated time frame. [Optional: If applicable, mention any steps taken to mitigate the delay or notify the appropriate personnel] I assure you that this incident is isolated and not reflective of my usual work ethic. I understand the significance of punctuality and the impact it has on the smooth functioning of the workplace. I have taken immediate steps to ensure that this situation does not recur, such as [mention any measures taken]. Again, I apologize for my tardiness and any disruption it may have caused. I value my job and the trust you have placed in me as an employee. I am committed to continuously improving my time management skills to avoid similar situations in the future. Thank you for understanding and for giving me the opportunity to rectify this situation. I will make every effort to regain your trust and prove my dedication towards my work. Sincerely, [Your Name] [Your Employee ID, if applicable]