Ask your manager which deadline should move

Show the work that needs the same hours

Imagine that you owe a client report on Thursday. On Tuesday afternoon, your manager asks for a presentation by Thursday too. You say you will try, then spend the evening switching between them. Neither is ready for someone else to review.

Before you speak to your manager again, look at the remaining work. The report needs three hours of analysis and a colleague’s check. The presentation needs four hours after the sales figures arrive. You have five available hours, once the meetings you must attend are accounted for. Use your best estimates and say where they might change; you do not need a perfect time study to explain the conflict.

Include dependencies that your manager may not see. A document you finish at five cannot have a two-hour review before five. If someone else has promised a client a date, name that commitment too.

Bring a choice your manager can make

You can suggest which task should come first, especially if you know which delay would affect a customer. Explain your reasoning and ask your manager to confirm it. That gives them something more concrete to consider than whether you can somehow work faster.

Keep each option feasible. Moving a deadline, reducing the scope, or asking an available colleague to take a defined piece of work could help. Saying a colleague can take over before checking their capacity only passes the problem along.

Ask what changes if both are urgent

Your manager may say that both deadlines matter. Acknowledge that, then return to what you can deliver. Ask which part of the work could be smaller, which meeting could move, or who has capacity to help. If there is a way to simplify the task that you have missed, hear it out and check the revised estimate.

You might say, “I understand why both dates matter. With the work we’ve listed, I can’t complete both in the time available. Could we agree which part to reduce?” Avoid offering an evening you cannot sustain just to make the conversation less uncomfortable.

Write down the decision

After the conversation, send a short confirmation: “I’ll finish the report on Thursday. The presentation moves to Friday, and I’ll let Sales know today.” Include any agreed change in scope and who will tell the people affected. Ask for a correction if you have misunderstood.

If the missing figures arrive late or the review takes longer, raise that change while there is still time to adjust. The earlier agreement does not mean you should conceal new information until a deadline passes.

Notice when the same problem keeps returning

The UK Health and Safety Executive’s workload guidance calls for demands that fit agreed working hours. Its talking toolkit also says that conversations must lead to attention to the risks identified. These are organizational responsibilities; a worker cannot solve persistent understaffing by finding a more agreeable sentence.

If conflicting promises keep returning, keep a factual record of the work, decisions, and effects. Use the support available in your workplace, such as another manager or a staff representative. For your next conversation, start with one current conflict and the decision you need, rather than trying to defend your entire work ethic.