What is the best time to launch a product on X?

Across 2,839 launch posts on X, Tuesday launches have the highest median views (192.3K), and posts that go out between 4:00 and 8:00 UTC (from 9pm US Pacific) do best by time of day (273.6K median). Most launches go out on Thursday, 16:00 to 20:00 UTC. Pick a category below to see its own pattern.

Day00–04 UTC5pm–9pm PT04–08 UTC9pm–1am PT08–12 UTC1am–5am PT12–16 UTC5am–9am PT16–20 UTC9am–1pm PT20–24 UTC1pm–5pm PT
Sun269.1K4 launches25.8K5 launches18.7K3 launches1.3M7 launches202.9K13 launches88.4K7 launches
Mon1.4M11 launches195.6K8 launches54.2K15 launches201K147 launches170.9K207 launches122.9K46 launches
Tue117K22 launches329.2K15 launches53.7K24 launches240.3K209 launches204.4K316 launches135.9K62 launches
Wed155.6K23 launches99.7K12 launches191.3K21 launches233.7K184 launches173.8K302 launches168.1K59 launches
Thu155.9K19 launches517.6K19 launches177.5K23 launches146.3K214 launches166.5K393 launches172.8K72 launches
Fri220.1K23 launches689.4K16 launches120.9K25 launches158.6K81 launches176.6K138 launches117.6K48 launches
Sat82.3K14 launches230.8K3 launches343.9K6 launches206K8 launches91.8K11 launches151.9K4 launches

Faded cells have fewer than 5 launches and are not ranked.

  1. #1 slot

    Monday, 5pm–9pm PT

    00–04 UTC · median 1.4M views · 11 launches

  2. #2 slot

    Sunday, 5am–9am PT

    12–16 UTC · median 1.3M views · 7 launches

  3. #3 slot

    Friday, 9pm–1am PT

    04–08 UTC · median 689.4K views · 16 launches

Read the timing with care

A slot's median mixes who posts then with when they post. Frontier labs often launch in the US morning, and their launches lift that slot. Look at your own category's map before moving a launch date.

What the first hour does matters more than the hour you pick. A post that collects quotes and replies early keeps being shown; one that does not fades within the day.

How it is measured

Every launch in Gridd's tracker with a timestamp, grouped by the UTC day and four-hour band it was posted in. Each cell shows the median views of the launches in it. Cells with fewer than five launches are shown faded and left out of the ranking.

Numbers are read from X every six hours, so the map moves as launches age and new ones are added.

Questions

What is the best day to launch on X?
Tuesday, by median views: 192.3K across 648 tracked launches. Sunday 153.1K, Monday 181.4K, Wednesday 178.8K, Thursday 162.1K, Friday 162.2K, Saturday 148.9K.
What time of day should I post a launch on X?
Launches posted 4:00 to 8:00 UTC (from 9pm US Pacific) have the highest median, 273.6K views across 78 launches.
Do weekend launches do worse on X?
85 of 2,839 tracked launches went out on a Saturday or Sunday, too few in most categories to rank. Most teams launch on weekdays, when press, investors and buyers are online.