How do you know if you're overcommitted?
The trouble with overcommitment is that it rarely announces itself while it is happening. You say yes to things one at a time, each one reasonable on its own, and the feeling of being stretched thin only arrives once the weeks are already full. By then it is hard to tell the difference between "this week was unusually heavy" and "this is just what my weeks look like now." A log does not settle that by asking you how you feel. It settles it by showing you what you actually agreed to, lined up.
Why the feeling is not a reliable signal
Some people feel overcommitted after two extra obligations. Others carry a genuinely unsustainable load and describe themselves as fine, right up until something gives. The feeling of being overextended depends on sleep, on how the last thing went, on whether today happened to be a good day — it is real, but it is noisy, and it is measuring your current mood as much as your actual schedule. Asking "do I feel overcommitted" gets you an honest answer to the wrong question.
The more useful question is not how full a day felt, but how many of the things in it were actually yours to set down. A day can feel calm and still be packed with obligations you said yes to on autopilot; a day can feel frantic and contain almost nothing you didn't choose. Feeling and load are related, but they are not the same thing, and a log is the only place that keeps a record of the load once the feeling has faded.
What a single day cannot show you
Read on its own, a busy Tuesday just looks like a busy Tuesday. Everyone has one occasionally. The problem is never really one day — it is what happens when Tuesday's shape is also Wednesday's shape, and last Tuesday's, and the one before that, without anyone deciding that on purpose. No single entry can tell you that, because the pattern only exists across entries. You cannot notice a shape from inside one data point.
This is where a log earns its keep over a memory. Memory tends to average things out or round up the worst week to "always" — you either overcorrect into thinking every week is like the bad one, or you forget the bad one entirely once it's over. A log does neither. It keeps each week as it actually was, so you can put a run of them side by side and see whether the full weeks are the exception or the rule.
What to actually look for
Overcommitment tends to leave a specific mark in a log, and it is not simply "a lot of entries." It shows up as evenings that used to have something in them — a hobby, a person, a category that used to appear weekly — going quiet at the same time a different category starts filling every slot. It shows up as a week with no unscheduled block anywhere in it, not one evening or weekend afternoon left with nothing written down. And it shows up as the same kind of obligation appearing in the log more often than you remembered agreeing to it that many times.
None of these require a special report to notice. They require rereading a month at a stretch, rather than a day, and looking at what disappeared rather than only at what is there. The gap in the log is often more informative than the entries around it.
Comparing periods instead of trusting the average
A month reduced to a single average hides exactly the thing you are trying to see. Averaging a slammed October against a light September tells you the year was "moderately busy," which is true and useless. Putting the two months next to each other, unaveraged, tells you something an average cannot: which one actually looks like your normal, and which one was the anomaly you have been quietly treating as normal since it happened. Overcommitment is easiest to catch by comparison — this month against last month, this season against the one before it — because the load rarely announces a threshold. It just creeps until two periods that used to look similar no longer do.
What to do once you can see it
Seeing the pattern does not fix it, but it changes what you are arguing with. "I feel busy" is easy to argue yourself out of — everyone feels busy sometimes, and the feeling passes. "Four of the last six weeks have had no evening without something scheduled in it" is a fact about a stretch of actual weeks, not a mood, and it is much harder to talk yourself past. That is usually the more useful thing a log can hand you: not a verdict on whether you should say no to things, but plain evidence of what you have already said yes to, so the next yes is a decision instead of a reflex.
TimeMap keeps that evidence without asking anything extra of you while you are living the busy week — a line for whatever you are doing, no separate accounting of your commitments to keep up to date. Later, putting weeks side by side is what turns a string of individually reasonable days into a pattern you can actually see and decide what to do with.