<b>Conversion rate swings 20-35% across days of the week for most B2C carts.</b>

<b>Conversion rate swings 20-35% across days of the week for most B2C carts.</b>
Monday browsers and Saturday buyers aren't the same population. A test run Tue-Thu and a test run over a weekend can disagree purely on timing.

— Always run in whole weekly multiples (7, 14, 21 days).
— Stopping mid-week skews you toward whoever shops then.

Weekday ▮▮▮ vs Weekend ▮▮▮▮▮ (same site, same week).

Read the number, not the story. [full-week cycles only]