Time Tracking for Developers: A Guide for People Who Hate Time Tracking

Let me say it upfront: I know you hate time tracking. I’m a developer. I hated it too. The whole ritual felt like an insult — interrupting actual work to prove I was doing actual work. Logging into some browser tab, clicking through dropdowns, entering numbers I half-remembered. It’s soul-crushing and everyone knows it.

But here’s the thing: if you bill by the hour, inaccurate time tracking costs you money. Not theoretical money. Real invoices that are $2,000 lighter than they should be because you forgot to log Tuesday afternoon and rounded down on Thursday. Over a year, that’s a car payment. Over five years, that’s a down payment on a house.

And even if you don’t bill by the hour, time data is how you estimate future projects. Every time a PM asks “how long will this take?” and you guess, you’re drawing from memory. Memory is bad at this. Data is better.

So the question isn’t whether to track time. It’s how to do it without wanting to throw your laptop out a window.

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The 30-Second Rule

Here’s the system: spend 30 seconds at the end of each task. Not at the end of the day. Not on Friday afternoon. Right when you finish the thing. You’re still in context. You remember what you did and how long it took.

If 30 seconds feels like too much, your tool is the problem, not the practice.

With the Miru CLI, logging a time entry looks like this:

miru time create --project-id 42 --duration 90 --date 2026-03-12

One line. Three flags. You don’t leave your terminal. You don’t open a browser. You don’t click through a UI. Fifteen seconds, tops.

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The Git Hook Approach

If even 30 seconds is too much, automate it. Here’s a post-commit hook that prompts you to log time after every commit:

#!/bin/sh
echo "⏱ Log time for this commit? (minutes): "
read minutes
if [ -n "$minutes" ]; then
  miru time create --duration "$minutes" --date "$(date +%Y-%m-%d)"
fi

You commit your code. The hook asks how long it took. You type a number. Done. Time tracking happens inside the flow of work, not as an interruption to it.

Some teams go further — they parse commit messages for project IDs and auto-allocate time. That’s fine if your commit hygiene is good. Most teams aren’t there, and that’s OK. The manual prompt is enough.

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Why This Matters More Than You Think

Three things happen when developers start tracking time accurately:

Estimates get better. You stop guessing and start referencing. “The last three API integrations took 12-16 hours each” is a better answer than “probably a week?”

Billing gets honest. Clients trust you more when the invoice has specific line items. “Fixed N+1 query in PDF generation — 1.5 hours” is credible. “Development work — 40 hours” is not.

You see where time goes. Most developers think they spend 80% of their time coding. The real number is usually closer to 50%. Meetings, code review, debugging, yak-shaving — it all adds up. You can’t fix what you can’t measure.

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The Right Tool Makes This Invisible

Tracking time shouldn’t feel like work. If it does, your tool is the problem.

The best time tracking tool is the one that fits into how you already work. For developers, that means the terminal. For everyone else, it might mean a browser, a mobile app, or a weekly timesheet. Miru supports all of them because we use all of them.

Start with the 30-second rule. Log time right after each task. Do it for a week. You’ll be surprised how much you were leaving on the table.

Try the CLI: curl -fsSL https://miru.so/install.sh | sh