time_add

Adds a specified amount of time to a date. Returns the result as an ISO 8601 string.

{% assign tomorrow = "now" | time_add: 1, "days" %}
{% log tomorrow %}

Syntax

{{ date | time_add: amount, unit }}

Parameter	Description
date	Starting date — a date string, "now", or "today"
amount	Number of units to add
unit	Time unit: "years", "months", "weeks", "days", "hours", "minutes", "seconds"

Return Value

Returns a string in YYYY-MM-DDTHH:mm:ss format.

Examples

Add days:

{% assign delivery_date = order.created_at | time_add: 5, "days" %}
{% log "Expected delivery: " | append: delivery_date %}

Add hours from now:

{% assign expires_at = "now" | time_add: 24, "hours" %}
{% log "Expires at: " | append: expires_at %}

Add months:

{% assign renewal_date = subscription.start_date | time_add: 1, "months" %}
{% log "Renewal: " | append: renewal_date %}

Schedule a follow-up:

{% assign followup_date = order.created_at | time_add: 2, "weeks" %}
{% log "Follow-up scheduled for: " | append: followup_date %}

Calculate an expiration date and format it:

{% assign expiry = "now" | time_add: 30, "days" %}
{% assign formatted = expiry | date: "%B %d, %Y" %}
{% log "Offer expires: " | append: formatted %}

Output:

Offer expires: March 23, 2025

Combine with in_timezone:

{% assign future = "now" | time_add: 3, "hours" | in_timezone: shop.timezone %}
{% log future %}

Notes

• Accepts "now" or "today" as the current date/time

• The output format is always YYYY-MM-DDTHH:mm:ss — use the date filter to reformat

• See also: time_subtract, in_timezone