Whose timezone do the time conditions use?

Your store's timezone, as configured in Shopify. A Saturday fee starts on your Saturday, wherever the customer is.

Can I combine day, time, and dates?

Yes, conditions combine with ALL: Saturday AND after 12:00 AND inside your busy season builds a very specific rush fee that manages itself.

Is a rush fee better as opt-in?

If rush processing is the customer's choice rather than a timing reality, use a cart attribute checkbox (like the order protection pattern) instead of, or combined with, the time conditions.

Rush, weekend & peak season fees on Shopify

Last updated: July 18, 2026

Time-driven surcharges run themselves in FlexiFees: a weekend dispatch fee (day of week is Saturday, Sunday), a same-day cutoff fee (time of day at or after 14:00), and a peak season surcharge (date range December 15 to 24). All evaluate in your store's timezone and appear or vanish from carts automatically.

The rules in FlexiFees

Fee	Calculation	Conditions
Weekend dispatch	Fixed cart fee, 4.90	Day of week is one of Sat, Sun
Same-day cutoff	Fixed cart fee, 6.90	Time of day is at or after 14:00
Peak season	Percentage cart fee, 3% capped	Date range is between Dec 15 and Dec 24

FlexiFees condition builder with day of week Saturday, Sunday and time of day after 14:00

Composition tricks

All three at once: Saturday AND after 12:00 AND inside the holiday window: the conditions AND together for surgical precision.
Category-limited: add a tag condition so only made-to-order items carry the rush fee.
Customer-chosen rush: pair a theme checkbox (cart attribute rush:yes) with a time window for opt-in same-day service.
Off-season pause: is not between inverts a date range, so a fee can sleep during your quiet months.

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Rush, weekend & peak season fees on Shopify

The rules in FlexiFees

Composition tricks

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