Will today fit?
List what you want to do today and roughly how long each thing takes. You get a plain answer: it fits, or it doesn't, and what to move to tomorrow.
To make it fit, move these to tomorrow
Even the first task runs past your finish time. Shorten it or move the finish time.
Your day
Tasks without a time were counted as 30 minutes.
How it works
The calculator adds up your tasks, adds a short gap between them if you want one, and compares the total with the time between now and when you want to be done. If the day is over budget, it moves tasks from the bottom of your list to tomorrow until the rest fits.
That is why the order matters. Put the things that have to happen today at the top.
Why a time budget helps
Most to-do lists have no clock in them, so every day looks possible in the morning. Giving each task a rough length and adding them up is the fastest way to see the truth while there is still time to choose what to drop.
If time tends to get away from you, these two guides go deeper:
Frequently asked questions
Is my list saved or sent anywhere?
No. The calculator runs in your browser. Nothing you type is sent to us or stored, and it is gone when you close the page.
What if I don't know how long a task takes?
Guess, then add half again. Most people underestimate. A line with no time counts as 30 minutes.
Which tasks does it move to tomorrow?
It moves tasks from the bottom of your list until the rest fits, so put what matters most at the top.
Does it account for breaks?
It can add 5 minutes between tasks. For meals or longer breaks, add them as a line, for example "Lunch 30".
Is there an app that does this?
Yes. Lantern for iPhone turns a brain dump into timeblocks, shows the same fits or doesn't fit verdict all day, and can make the day fit in one tap.