When something is "due by [date]," it typically means that it should be turned in on or before the specified date. However, the specific interpretation may vary depending on the context and the guidelines provided. It is always best to clarify with the person or organization setting the deadline to ensure you understand their expectations.

Here are some key points to consider:

1. Deadline Interpretation: In most cases, "due by [date]" implies that the task or assignment should be completed and submitted before the specified date. This allows for processing time and ensures that the work is available or reviewed by the intended recipient on or by the deadline.

2. Timely Submission: To avoid any potential issues or misunderstandings, it is generally recommended to submit the task or assignment ahead of the due date. This allows for unforeseen circumstances, technical difficulties, or any last-minute adjustments that may be required.

3. Communication: If you anticipate any challenges in meeting the deadline or need additional time, it is important to communicate with the relevant parties as early as possible. Requesting an extension or discussing alternative arrangements can help manage expectations and maintain open lines of communication.

Learn more:

1. Setting up timeline due dates based on event date - Platform discussions - monday Community Forum
2. Due date best practices - Tips and Tricks - Asana Forum
3. Solved: HubSpot Community - Ticket Due Dates - HubSpot Community