When I open pull requests · London time

The shape of a day.

2 → 10PRs opened on a typical working day.median day with at least one PR

7 hoursbetween my first and last PR on a typical Tano day, from about 10:10 to 17:35.PostHog: a single burst, around 13:00–14:45

44% → 32%of PRs opened between 12:00 and 15:00. At Tano the morning, midday and afternoon each get a third.32% · 32% · 36%

Share of PRs opened, by hour

PostHog clustered around lunch. Tano spreads across the whole day

Each series adds up to 100% across the day. Hover an hour for both values.

PostHog · 859 PRsTano · 1,638 PRs

Swipe sideways to see the whole chart.

Every PR in my busiest month · one row per day

A month of days, one dot per pull request

Each row is a working day with at least one PR; each dot is the time a PR was opened. April 2023 was my busiest PostHog month and August 2026 my busiest Tano month. Hover a row for its count.

PostHog · April 2023

Tano · August 2026

What this shows

Writing code used to set the pace of my day. I spent the morning building, and a PR marked the end of that stretch. At Tano, the agents remove that limit: a PR can go up at any hour, and on busy days one goes up every ten minutes. With core hours of 9 to 6, pacing myself is now a skill I need, so that I don't use up my energy by lunchtime.

Method and caveats

Times are when each PR was opened on GitHub, converted to London time for both companies. If I worked other hours at PostHog, the PostHog curve shifts.
A typical day is the median across days with at least one PR. First and last times are medians of each day's first and last PR, so on days with one PR they are the same moment.
Opening a PR is the visible end of a piece of work, not all of it. Reviewing, planning and talking to people happen between the dots.
Source: the same 859 PostHog and 1,638 Tano PRs as the other two infographics. Almost none were opened at weekends at either company.