When it comes to productivity, different things work for different people.

But there are some productivity hacks that work for most people. Using task duration estimates aka time estimates is one of them.

benefits of using time estimates in your todo list
The surprising benefits of using time estimates

What are time estimates?

The idea is simple:

Whenever you create a task you also include how long you think it will take you to complete the task.

time estimate on task example
This task will approximately 20 minutes to complete

Whenever I introduce this strategy to a client they get super excited to try it out. And later they come back raving about how much it’s helped them with their work.

Sadly, few people actually use time estimates because they either don’t know about it or don’t use an application that supports this feature (almost none of the popular to-do list apps do 👎).

But in this post I show you 5 surprising ways time estimates can boost your productivity and help fight procrastination. At the end I also included some ideas on how you can implement this strategy into your workflow right now.

1) Time estimates make a long to-do list less intimidating

less to-do list overwhelm, less procrastination

Imagine you look at your to-do list for the day and thirty tasks are staring back at you: instant overwhelm and dread.

The longer your to-do list, the more you want to avoid it.

But long lists can be deceiving. If you have a bunch of quick phone calls to make and a ton of little mini tasks that you collected over the week, then your to-do list can quickly become a mile long without actually requiring very much time to complete.

Without time estimates all we see is a seemingly endless list. But once you attach a time estimate to each task and look at the total,  your perception of the list can instantly change:

Long todo list before
So many tasks!
using time estimates to get stuff done
30 minutes? I got this!

2) Time estimates help you get started sooner

overcome the “I can do this later today” fallacy

Many people have a warped sense of time. For example, I used to believe that time magically expands the later it gets in the day.

Somehow the time left in the day seemed almost infinite. This led me to have absolutely no sense of urgency when it came to my tasks for the day. As long as it was not dinnertime yet I felt there was still plenty of time left to get through all my tasks somehow. Ha!

Had I actually gotten any work done in the morning I would have realized how quickly an hour goes by! And obviously an hour in the morning is just as long as an hour in the evening.

Time estimates give you the facts. A time estimate for your entire to-do list lets you see how much time you need to get through all your tasks (assuming you have already honed your estimation skills) in black and white. And your watch will tell you how much time there is left in the day to work… you can do the math.

Most often seeing the total time of your to-do list will give you a little kick in the butt to get started sooner rather than later.

The same principle also applies to projects. Understanding how many hours it takes to complete an entire project will help you get started sooner.

3) Time estimates can make a difficult task less intimidating

the less intimidating a task, the more likely you will do it

Without a time estimate we only see what the task entails. So our focus is on the activity we have to do. If a task is unpleasant in any way or particularly difficult we will have a natural aversion towards the task and tend to avoid it (hello procrastination!).

But when you add a time estimate to a task, you now have something else you can focus on: how quickly this unpleasantness will be over. To most people even 15 or 25 minutes seems like a short period of time. This fact works to your advantage when you add time estimates to your tasks.

time estimates make a nasty task more appealing
Ugh, cleaning toilets vs. Nice, this task only takes 5 minutes!

This has worked particularly well for me when it comes to an activity I dread immensely: making phone calls! I would often not cut my hair until I looked like a jungle creature just because I dreaded making appointments over the phone.

After using time estimates daily I am now used to looking at the number beneath the task to assess its “difficulty”. So when I have a phone call on my list now, I immediately see the “1min” and it becomes one of the “easy” tasks on my list. Tricked you, brain!

Obviously, this can backfire if you make tasks that take a long time (which is not a good idea for many reasons). So if you want to take advantage of this, then it’s extra important to keep your to-dos short and snappy (especially tasks that you are dreading). Any big task can be split up into smaller tasks. It just takes a bit of practice and know-how.

4) Time estimates help you become a better time estimator

level up your project planning skills

If you use time estimates in combination with time tracking (measuring how long it takes you to actually do the task) you will notice patterns about which tasks you commonly underestimate and which tasks are actually much quicker than you think.

Raising awareness about this discrepancy in task duration will make you better at estimating task length in the future. And knowing how long individual tasks take is an important part of being able to estimate how long entire projects take.

This is obviously a super important skill for many people:

  • For freelancers who juggle multiple projects and need to give clients accurate project completion estimates and plan their time
  • For students who want to get started on an assignment at the right time to avoid a panicked all-nighter
  • For entrepreneurs who need to plan out a roadmap with many projects to grow their business
  • For office workers who want to ensure they can complete a project on time and set realistic deadlines in the first place

5) Time estimates prevent you from putting too much on your plate

actually finish your daily to-do list and feel amazing

How often do you actually manage to complete your entire to-do list for the day? If you are like most people the answer is: rarely.

The problem is that it is often not even possible to complete everything we put on our lists. After all, there are only so many hours in the day. Plus we don’t have all those hours available for work and we also don’t have unlimited focus and energy.

Not finishing your to-do list feels super unsatisfying and can even spiral you into negative self-talk about how you are unproductive, lazy, and a total loser. Studies have shown that this negative self-talk leads us to be even less productive the next day. So it’s very important to try and avoid this.

But actually finishing your to-do list feels amazing. ✨

We need to set ourselves up for to-do list success so we can feel good about ourselves and the work we do. This will increase your self-confidence and belief in yourself, which in turn will help you get even more done. It’s a positive feedback loop.

Time estimates help you to create a more realistic to-do list that you can actually finish in a day. The key is to know how much time of active work you can realistically get done in any given day. Then you can make sure the total time estimate doesn’t exceed that limit.

Putting too much on your todo list
You sure about that?

How you can incorporate time estimates in your workflow

If you are a pen and paper kind of person you can just write a time estimate next to each task and manually total them up as you add more tasks.

If you are a Marvin user you can turn on the strategy called “How long will this take?” and start adding time estimates to each task by adding a “~” followed by the time estimate. It will automatically add up the estimate within each section and display the total at the top.

adding time estimates in amazing marvin
How to add time estimates to a task in Marvin

If you use another app to manage your tasks you can add a time estimate at the end or beginning of each task title. Unfortunately, most to-do list apps do not support an automatic totaling of the time. But you can always do it manually.

Summary
Time estimates can boost your productivity and help you fight procrastination. Try using them in your workflow to see if they work for you.
Time estimates can help you…
  1. procrastinate less because your long list of tasks looks way more doable when you focus on the total time it takes to complete it
  2. get started sooner on your work for the day because you know exactly how much time you need to get it done and how much time there is left in the day
  3. not put off a difficult task because even a dreadful task feels doable if you focus on how quickly it can be over
  4. improve your project planning skills by becoming more aware of how accurate your estimates are (when used in combination with time tracking)
  5. finish your entire to-do list for the day because you won’t put too much on there in the first place
Share in the comments

Have you tried using time estimates before? Did you like it? Can you think of another benefit of using time estimates?

🦄Emoji Icons provided by EmojiOne and Twemoji🦄

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10 Comments

  • Oz
    Posted July 25, 2017 5:42 PM
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    As a productivity geek, I loved and enjoyed reading your awesome blog post Christina. I consume a lot of content on productivity and this is most definitely one of the best blog posts I have read recently. You touched upon a brilliant point that is indeed neglected a lot by many people when making a to-do list, which is ironically enough usually the root cause of their frustration when dealing with a busy schedule. Using time-estimates and keeping track of time when working on even the smallest task is a great idea to maximize our use of time as well as efficiency. Thank you for sharing this brilliant blog post and reminding the value of using time-estimates when making a to-do list. I look forward to reading your next blog posts on productivity.

    • Christina Willner
      Posted July 25, 2017 6:18 PM
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      Thanks, Oz! I am really happy that you enjoyed the post! 🙂

    • Teal
      Posted December 9, 2017 2:55 PM
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      Wow, this is a great idea–and something I can definitely integrate! I had never really even considered this before!

      • Christina Willner
        Posted December 26, 2017 10:42 AM
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        Glad you like the idea of time estimates! 🙂 Let us know how it worked out for you!

  • Marco
    Posted August 26, 2018 12:24 PM
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    Is there some to do list app that incorporate estimated time?

  • Shun
    Posted October 31, 2018 3:03 PM
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    Hello.
    Today, I searched on Google: “todo list with time estimation and time tracking” in English.
    Because I always asked and found almost nothing. (Only Toodledo met this need, but I felt the limits to his scheduling ability, so I was traveling to find a system, in an unfamiliar English)

    … And I am here!
    I thank you for your efforts!
    I am looking forward to try this system from now on.
    Thank you! Thank you very much!

    PS:
    I am not an English speaker (I ‘m Japanese). English is difficult for me.
    I expect accurate Google Translation.

    • Christina Willner
      Posted November 1, 2018 4:31 PM
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      Hi Shun! So so happy you finally found an app with time estimation and time tracking! 🙂 Amazing Marvin is still early and we have many plans to improve these two features and many more. Write us if you have any wishes! We love adding ideas from our users.

      PS: The English translation worked very well!

  • Lisa John
    Posted February 1, 2019 8:43 AM
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    Great article. I’m new to all this and not a productivity geek at all! In fact I’m a complete beginner. I’m excited to start and time estimates look like a good place to start along with a list! Amazing Marvin trial to start soon, once I’ve read enough to get the most out of it.

    • Christina Willner
      Posted February 4, 2019 2:12 PM
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      Hey Lisa! Glad you liked the article. And yes, time estimates with a list is a great place to start! 🙂 One of the biggest problems is overscheduling your day and then feeling really bad for not getting enough done. And time estimates really help with that. So it prevents a negative spiral of feeling unproductive (when in fact our list was just unrealistic) and it becomes a self-fulfilling prophecy.

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