How to Manage Deadlines When Several Tasks Are Due at the Same Time

Several deadlines can turn an ordinary working day into a series of difficult decisions. You finish part of one assignment and remember that another needs attention. A group member is waiting for your contribution, a report still requires checking, and the submission times are getting closer.

The difficult part is often deciding what deserves attention first. Every task has a deadline, but the consequences of missing it, the work still required, and the people depending on it may differ.

Starting with the easiest task can leave an important obligation unfinished. Starting with the largest can consume time needed for something due sooner. Moving repeatedly between tasks can create activity without bringing any of them close to completion.

Overlapping deadlines are not necessarily evidence of poor time management. Sometimes the workload exceeds the time genuinely available, even with careful planning.

The aim is to distinguish work that can still be completed from commitments that require a change in timing, scope, or expectations.

Answer Summary: To manage several deadlines at once, confirm exactly what is due, estimate the unfinished work, and compare it with the time available before each cutoff. Decide priorities using deadlines, consequences, and dependencies rather than urgency alone. Give essential tasks specific working periods and monitor completion. If the workload cannot fit, communicate the conflict early and request an appropriate decision instead of relying on an unrealistic schedule.

1. Identify Every Deadline Before Choosing What to Do

When several tasks are due together, start by establishing the exact requirements for each one. A deadline list is useful only when it reflects what must be delivered and when completion is expected.

Check the Exact Submission Time

Two assignments due on Friday may have different submission times. One may close in the morning, while another remains open until the evening.

The same distinction matters at work. A report may be due to a manager before it can be reviewed and delivered to a client.

Check:

• The exact date, time, and applicable time zone

• The required document, format, or output

• The submission or delivery method

• Any approval, review, or group handoff

• The applicable rules for late or incomplete work

Use the original assignment instructions, official submission platform, or agreed workplace requirements.

Where instructions conflict, seek clarification rather than deciding which deadline is more convenient.

Pay particular attention to platforms that use a different time zone. A deadline expressed in another country's local time should not be treated as equivalent to your own local time without checking the conversion.

Understand What Completion Requires

A task may appear close to finished while still having essential steps outstanding.

Writing the main content of a report is different from completing its references, checking the figures, and submitting the required file.

Likewise, preparing your contribution to a group presentation does not finish the shared work if another member must assemble and review the slides.

Separate the required deliverable from optional refinements.

A mandatory reference section deserves attention before optional changes to presentation style. A report that requires approval cannot be considered ready for delivery while that approval is outstanding.

This distinction becomes particularly useful when time is limited. It allows you to protect the quality and completeness required by the task without spending disproportionate time on improvements that were not requested.

2. Calculate Whether the Remaining Work Can Fit

A realistic plan must account for both the unfinished workload and the time available before each deadline.

A long task list can create the impression that everything needs immediate attention. Breaking the work into specific steps gives you a clearer basis for deciding what is achievable.

Estimate the Work That Remains

Consider what remains unfinished, not how large the original assignment was.

A written assignment, for example, may require:

• Checking the remaining sources

• Completing unfinished sections

• Reviewing the argument and calculations

• Correcting references and formatting

• Checking the final document

• Uploading and confirming submission

If research and drafting are already complete, exclude them from the remaining workload.

If the report still needs substantial revision, do not treat it as finished because most of the pages contain text.

Research by Roger Buehler, Dale Griffin, and Michael Ross (1994) examined how people predict their task-completion times. Across the tasks studied, participants often made optimistic predictions about how quickly they would finish. In one study, directing attention toward relevant previous experiences improved prediction accuracy.

The practical lesson is to compare your estimates with similar work you have completed before, rather than relying entirely on how quickly you expect to work this time.

If you have little experience with a task, acknowledge that uncertainty. An unfamiliar analysis, a difficult reading assignment, or a project requiring new software may take longer than anticipated.

Do not treat the initial estimate as a fixed promise.

Separate Active Work From Waiting Time

Some tasks require your effort. Others require action from someone else before you can continue.

These two requirements create different scheduling problems.

Suppose you need feedback on a document before making the final corrections. The corrections require your working time, but obtaining feedback also introduces a waiting period.

Finishing other assignments while waiting can make sense. However, the final document remains dependent on when the feedback arrives.

Record such dependencies separately.

Where another person's response is essential, request it early enough to leave a realistic opportunity for your remaining work.

Compare Estimates With Your Actual Calendar

Available time means the periods you can reasonably use before each deadline, after accounting for necessary commitments.

Start with fixed obligations such as classes, work shifts, appointments, meals, rest, and caring responsibilities.

Then identify the remaining working periods before each cutoff.

Cornell University's Learning Strategies Center recommends mapping major deadlines on a longer-term calendar and using a weekly calendar to account for fixed commitments and study time. It also advises maintaining a balanced schedule that includes sleep and other necessary activities.

A crucial distinction is when time becomes available.

Having several free hours later in the week does not help with an assignment due earlier.

Likewise, sufficient time for the entire workload does not mean the schedule is feasible if too much work must be completed before the first deadline.

Check whether the essential steps fit before their individual cutoffs, not merely whether the total estimated hours appear manageable.

Leave reasonable room for checking, submission, interruptions, and uncertain tasks.

If everything fits only when each estimate is exact and no delay occurs, the schedule has little flexibility.

3. Decide Which Task Needs Attention First

When deadlines overlap, priority should reflect more than the date written beside each task.

The London School of Economics and Political Science describes effective prioritization as a matter of judgment rather than rigid rules. Its guidance emphasizes recognizing competing demands and being clear when work cannot reasonably be completed within the available time.

Three considerations help distinguish tasks that appear equally urgent.

Which Task Has the Earliest Effective Cutoff?

Begin with the confirmed deadline, including any steps required before final delivery.

An assignment submitted independently may remain entirely within your control until its cutoff.

A group contribution may need to reach another member earlier so the combined document can be completed.

In that situation, the group handoff is an important working deadline even when the final submission occurs later.

The distinction is between when the final output is due and when your contribution must be ready for the next step.

What Happens if the Task Is Delayed?

Different obligations carry different consequences.

A missed academic submission may be handled according to institutional rules. A delayed workplace contribution may prevent another person from completing their assigned work.

The relevant consequences must be checked rather than assumed.

Consider whether a delay would:

• Breach a stated requirement

• Affect an assessment or formal commitment

• Prevent another person from completing dependent work

• Leave insufficient time for required checking or approval

Importance does not automatically mean that the largest or most demanding task should come first.

An important project with a later deadline may allow some flexibility, while a smaller obligation has a fixed cutoff.

Which Task Is Blocking Other Work?

A dependency occurs when one step cannot proceed until another is completed.

Consider a group presentation that requires information from several contributors. If one member is responsible for supplying the figures needed by the person assembling the slides, that contribution may need early attention.

This does not mean the entire presentation must be completed before other assignments.

It means the dependent step should be identified and scheduled before it prevents the group from continuing.

This is particularly important when different people manage separate deadlines. A personal schedule that ignores shared responsibilities can appear workable while creating difficulties for others.

What if Several Tasks Are Equally Important?

When the deadlines, consequences, and dependencies are similar, use remaining effort and available working periods to select a practical order.

A shorter task may be worth completing first if doing so removes an immediate obligation without endangering longer work.

However, completing easy tasks simply to reduce the number of unfinished items can leave too little time for demanding assignments.

There is no universally correct rule to finish the easiest, hardest, or largest task first.

Choose an order that fits the actual constraints, then review it when new information changes the situation.

4. Turn Priorities Into a Workable Schedule

Once priorities are clear, assign the necessary work to specific periods before each deadline.

The schedule should identify what you intend to complete, not merely which subject or project you will work on.

Give Each Working Period a Clear Purpose

A calendar entry such as “work on report” leaves the next decision unresolved.

“Check the remaining references and correct the citations” describes a more useful task.

Similarly, “prepare presentation” is less specific than “finish the figures needed for the group presentation.”

Identify an achievable next step and the conditions for considering it complete.

This allows you to assess whether the work is moving toward submission without repeatedly reconsidering the entire task list.

Avoid assigning every minute of available time. A plan needs room for ordinary interruptions and work that takes longer than expected.

For recurring academic commitments beyond the immediate deadline conflict, a study plan can help make future assignments visible earlier.

Reduce Unnecessary Switching Between Tasks

Working on several projects during the week is not the same as repeatedly changing between them within a short period.

The American Psychological Association's review of experimental research on task switching explains that changing between demanding activities can involve measurable time costs. The size of these costs depends partly on the tasks and the conditions of the experiments.

Sophie Leroy's 2009 research examined a related difficulty: attention can remain partly occupied with unfinished work after someone moves to another task.

The experiments help explain why switching between unfinished activities may interfere with concentration. They do not establish an exact amount of time lost during ordinary studying or professional work.

A practical response is to limit unnecessary switching while working on tasks that require sustained attention.

When you must change activities, make a brief note of:

• What has been completed

• What remains unresolved

• Where the relevant document or information is located

• What action should happen when you return

This reduces the need to reconstruct your previous work.

It is not necessary to remain on one task when an important handoff, deadline, or interruption requires attention. The purpose is to avoid switching without a reason connected to the work.

Monitor the Remaining Work, Not Only Time Spent

Spending a scheduled period on a task does not establish that the intended work has been completed.

At a natural checkpoint, compare the outcome with your plan.

Did you finish the required section? Did the expected feedback arrive? Is the document ready for review? Does the estimated remaining work still fit before the deadline?

If a task takes longer than anticipated, adjust the schedule rather than carrying forward an outdated estimate.

This is especially important when a delay affects another task.

A schedule is useful because it makes the consequences of changes visible. It should not become another obligation that cannot be revised.

5. What to Do When You Cannot Meet Every Deadline

If the required work exceeds the time available, the solution must address the underlying constraint.

A more detailed timetable cannot create additional hours, supply missing information, or grant permission to change an agreed deadline.

Recognizing an infeasible workload is an important decision, particularly when several commitments were assigned independently.

Identify Which Conditions Can Change

Start by separating what you control from what requires another person's agreement.

You may control the order of independent tasks, how you organize working periods, and when you request clarification.

Other changes may require authorization, including:

• Extending a submission deadline

• Reducing or revising the agreed scope

• Changing a group responsibility

• Reassigning workplace tasks

• Adjusting a review or delivery date

Check the relevant rules before choosing an option.

Some deadlines are fixed. Others allow changes under specified conditions.

Do not assume that a reasonable request creates an entitlement to an extension.

Explain the Conflict Early

When a conflict is foreseeable, contact the responsible person while there is still an opportunity to consider alternatives.

A useful explanation should include the affected deliverable, confirmed deadline, completed work, remaining obstacle, and decision required.

For example, an employee receiving competing requests from two managers may need an agreed priority. Choosing independently without informing either manager can create conflicting expectations.

A student with several assignments due together may need clarification on the requirements or information about an institution's extension procedure.

Edge Hill University advises students facing conflicting deadlines to plan their assignments, seek clarification from tutors, and discuss the possibility of an extension when circumstances affect their ability to submit. This guidance does not establish a universal extension policy.

Be specific about the assistance or decision needed.

If you are requesting more time, check that the alternative you propose is realistic. Moving a deadline without reconsidering the remaining workload may transfer the same conflict to another date.

When a revised arrangement is approved, confirm the new requirements through the appropriate channel.

Avoid Treating Overwork as the Default Solution

An infeasible workload should not automatically become a plan to remove sleep, meals, or other necessary responsibilities from the calendar.

Such a plan may ignore the original difficulty: more work is required than can reasonably fit into the available time.

There are also situations in which the workload is externally determined. Students may have limited influence over assessment schedules, while employees may have little authority to change several independently assigned projects.

In these circumstances, identifying the conflict and seeking an authorized decision is more appropriate than assuming the individual must absorb every scheduling problem.

6. What if a Deadline Has Already Passed?

A missed deadline requires an accurate understanding of the applicable rules and the work's current status.

First, check whether a late-submission or late-delivery procedure exists.

Then establish what is complete, what remains unfinished, and which communication channel should be used.

For academic work, the institution may have formal rules governing late submissions, extensions, or exceptional circumstances. Their availability and consequences vary.

For professional work, any revised delivery arrangement should be discussed with the responsible person.

Avoid claiming that a task was submitted when it was not. Do not presume that an incomplete deliverable will be accepted.

If a revised deadline is agreed, check its feasibility against your remaining commitments.

A missed cutoff can also reveal a planning weakness, such as an underestimated task or an overlooked dependency. However, one missed deadline does not establish that poor planning caused the problem.

Understanding the cause matters because the appropriate response differs between preventable delays and a workload that exceeded reasonable capacity.

7. A Short Checklist for Overlapping Deadlines

When deadlines are close, use the following checks to identify the immediate decisions without rebuilding your entire schedule.

After recording the information, ask whether the essential steps can be completed before their respective deadlines.

If they can, assign the next required actions to your available working periods.

If they cannot, identify which requirement needs clarification or an authorized change. Address that conflict while continuing work that remains feasible.

The checklist is an editorial planning tool, not a tested formula for predicting deadline outcomes.

8. Avoid Mistakes That Make Deadline Conflicts Harder

Some planning habits can make overlapping deadlines more difficult to manage.

One is treating a to-do list as proof that the work is manageable. A list identifies obligations but does not show whether they fit into the calendar.

Another is confusing activity with completion. Spending time reading, editing, or organizing files may contribute to a task without satisfying its remaining requirements.

Repeatedly choosing easier work can also delay a demanding task until there is insufficient time to finish it.

Other avoidable problems include:

• Forgetting an earlier review or group handoff

• Ignoring the exact submission time

• Treating uncertain estimates as fixed

• Spending excessive time on optional refinements while required components remain unfinished

• Changing priorities repeatedly without new information

• Assuming an extension or modified requirement has been approved

These mistakes deserve attention because they concern decisions that can be checked and changed.

They should not be confused with circumstances beyond an individual's control.

A 2021 meta-analysis by Brad Aeon, Aïda Faber, and Alexandra Panaccio examined 158 empirical studies and reported associations between time management and academic achievement, job performance, and wellbeing. The research also found variation across studies.

Those associations do not establish that a particular planning technique will prevent missed deadlines or resolve every workload conflict.

The practical role of time management is to support clearer decisions about the work that can be undertaken, the time it requires, and the adjustments needed when circumstances change.

Conclusion

Managing several deadlines at once requires more than choosing the task that feels most urgent.

Start by verifying what each commitment requires and its exact cutoff. Estimate the unfinished work, account for dependencies, and compare the workload with the time genuinely available.

When several tasks compete for attention, use their deadlines, consequences, and prerequisites to decide which step needs attention first.

A workable schedule should protect time for essential work while remaining open to revision.

If the commitments cannot fit, communicate the problem and seek changes through the appropriate process. An accurate assessment of the workload is more useful than a schedule that depends on conditions unlikely to hold.

The immediate priority is to establish what remains possible, what deserves attention now, and which commitments require a decision from someone else.

References

1. Buehler, R., Griffin, D., and Ross, M. (1994). Exploring the “Planning Fallacy”: Why People Underestimate Their Task Completion Times. Journal of Personality and Social Psychology, 67(3), 366–381.

2. Cornell University, Learning Strategies Center. Managing Time. Academic guidance on calendars, estimating workloads, fixed commitments, and managing study responsibilities.

3. London School of Economics and Political Science. Time Management and Organisation. LSE Careers Skills Framework.

4. American Psychological Association (2006). Multitasking: Switching Costs. Research summary examining the cognitive costs of switching between tasks.

5. Leroy, S. (2009). Why Is It So Hard to Do My Work? The Challenge of Attention Residue When Switching Between Work Tasks. Organizational Behavior and Human Decision Processes, 109(2), 168–181.

6. Edge Hill University (2024). How to Manage Conflicting Deadlines at University. University guidance on assignment planning, prioritization, and support.

7. Aeon, B., Faber, A., and Panaccio, A. (2021). Does Time Management Work? A Meta-Analysis. PLOS ONE, 16(1), e0245066.