How to show an estimated delivery date on a Shopify product page

An estimated delivery date (Order today, get it between Jun 14 and Jun 17) is one of the highest-impact things you can add to a product page. It answers the question every shopper has before they buy, and it does it without a single extra click. You can build it with pure Liquid date math, no app.

The catch is that Liquid date arithmetic has one non-obvious trick, and getting it wrong is exactly where copy-pasted snippets fall apart. Here is the correct version.

The snippet

Create snippets/delivery-estimate.liquid and render it under your buy button. It computes a date range from a minimum and maximum lead time in days:

1{% assign lead_min = 2 %}2{% assign lead_max = 5 %}3 4{% assign min_seconds = lead_min | times: 86400 %}5{% assign max_seconds = lead_max | times: 86400 %}6 7{% assign delivery_from = 'now' | date: '%s' | plus: min_seconds | date: '%b %-d' %}8{% assign delivery_to = 'now' | date: '%s' | plus: max_seconds | date: '%b %-d' %}9 10<p class="delivery-estimate">11  Order today and get it between12  <strong>{{ delivery_from }}</strong> and <strong>{{ delivery_to }}</strong>.13</p>

The trick: dates are just numbers

Liquid has no "add days to a date" filter. The way you do date math is to convert to a Unix timestamp (seconds since 1970), add seconds, then format the result back into a date:

• 'now' | date: '%s' converts the current time to a Unix timestamp. %s is the timestamp format in the date filter.
• | plus: min_seconds adds the lead time. Because a day is 86400 seconds, lead_min | times: 86400 is your minimum delivery offset.
• | date: '%b %-d' formats the resulting timestamp back into a friendly date like Jun 14 (%b is the short month, %-d is the day without a leading zero).

Make the lead time a merchant setting

Hardcoding 2 and 5 works, but the merchant will want to change it (holidays, supplier delays). Move the lead times into section settings so they are editable in the theme editor:

1{2  "type": "number",3  "id": "delivery_lead_min",4  "label": "Minimum delivery days",5  "default": 26},7{8  "type": "number",9  "id": "delivery_lead_max",10  "label": "Maximum delivery days",11  "default": 512}

Then read them at the top of the snippet with {% assign lead_min = section.settings.delivery_lead_min %}. For per-product control instead, store the lead time in a product metafield and fall back to the setting.

Skip weekends (optional polish)

If you do not ship on weekends, a fixed day count can land a delivery promise on a Sunday. A simple improvement is to widen the max lead time, or to nudge the range when 'now' | date: '%w' (day of week, 0 = Sunday) falls late in the week. Keep it simple: shoppers want a believable window, not a logistics simulation.

Wrapping up

Convert to a timestamp, add seconds, format back to a date: that is the whole technique, and it unlocks any date math you need in Liquid. Add a merchant setting for the lead time and you have a delivery estimate that is honest, editable, and entirely app-free.