How do you know if a new job is actually better than your old one?
Three or four months in, someone asks the obvious question — was the new job actually worth it — and the honest answer is that you are not sure anymore, because the old job you are comparing it to is not the one you actually worked. It has already been reshaped by everything that happened since you left it, and it keeps reshaping depending on how this week at the new place is going.
The old job changes shape to match how the new one is going
On a hard week at the new job, the old one gets quietly nicer in the retelling — the commute was not that bad, the manager was not that difficult, at least you knew where everything was. On a good week, the same old job gets worse to match — obviously it was dragging you down, obviously leaving was overdue. Neither version is being invented on purpose. Memory is just doing what it does with a "before" that has no independent record to hold it steady: it edits the past to make the present feel like the right outcome, whichever outcome you currently have.
The new job has its own distortion, and it runs on a schedule
Early weeks at a new job carry a lift that has very little to do with whether the job is actually better. Everyone is polite because nobody knows you well enough yet not to be. The building is new, the software is new, the coffee machine is new, and novelty reads as improvement even when nothing about the actual work has been evaluated yet. That lift fades on its own timetable, unrelated to the job's real merits, which means a verdict formed in month one is mostly a verdict on the honeymoon, not on the job.
What actually changed, versus what only sounds better
"This job is so much less stressful" and "I am actually leaving the office an hour earlier" are different claims, and only one of them survives a look at what you actually did. Relief at having made a decision produces its own good feeling, whether or not the decision itself changed much — quitting something difficult feels like progress on the day you quit it, independent of what comes next. A plain record does not care how resolved you feel. It only holds what actually happened: what time entries stop for the evening, whether weekends have more in them than errands and recovery, who shows up in the entries and how often, whether a category that used to be empty — a hobby, a friend, an evening class — has anything back in it.
The comparison needs a "before" that was written before you decided to leave
A daily log kept during the old job, in the ordinary weeks before quitting was even on the table, solves this by accident. It was not written to build a case for leaving, because there was no case yet — you were just noting what an ordinary Tuesday held. That is exactly what makes it usable later as an honest baseline. It cannot have been softened into "it was fine, really" or sharpened into "it was clearly time to go," because at the time nothing had been decided either way.
Read two ordinary stretches side by side, not two stories
The useful comparison is not "new job story" against "old job story." It is an ordinary month from before, put next to an ordinary month now, both read for what is actually in them rather than summarized from memory. What time the entries stop most evenings. Whether the same three or four names still show up in the record, or whether one of them quietly disappeared somewhere around the move. Whether a weekend reads as recovered-in-time or still catching up on Monday's account. None of that requires deciding in advance which job wins — it just requires that both stretches were actually written down, in the same plain way, before you knew which way you would want the answer to lean.
TimeMap keeps that kind of record without asking you to decide in advance that any particular stretch of weeks will matter later. You write a line about what you are doing, give it a category colour, and it is filed to a calendar you can reopen on any date — so if a job change ends up on the table six months from now, the ordinary weeks beforehand are already there, unedited by the outcome, ready to sit next to whatever comes after. Two stretches of days can be pulled up side by side, or read back through an AI review of a period, to see what actually differed instead of relying on how each job currently feels to remember.
It will not hand you a verdict, and it should not be asked for one — whether a job is "better" is not a number a record can produce. What it can do is stop the comparison from running entirely on two competing stories, one about the job you left and one about the job you are still deciding how to feel about, neither of them written down at the time either was actually happening.