--- title: ISO8601DateTime - Storefront API description: An ISO 8601-encoded datetime api_version: unstable api_name: storefront source_url: html: https://shopify.dev/docs/api/storefront/unstable/scalars/iso8601datetime md: https://shopify.dev/docs/api/storefront/unstable/scalars/iso8601datetime.md --- # ISO8601Date​Time scalar An ISO 8601-encoded datetime ## Map ### Fields with this scalar * <-|[Cart​Delivery​Option.maxEstimatedDeliveryDate](https://shopify.dev/docs/api/storefront/unstable/objects/CartDeliveryOption#field-CartDeliveryOption.fields.maxEstimatedDeliveryDate) * <-|[Cart​Delivery​Option.minEstimatedDeliveryDate](https://shopify.dev/docs/api/storefront/unstable/objects/CartDeliveryOption#field-CartDeliveryOption.fields.minEstimatedDeliveryDate) * <-|[Shop​Pay​Payment​Request​Delivery​Method.maxDeliveryDate](https://shopify.dev/docs/api/storefront/unstable/objects/ShopPayPaymentRequestDeliveryMethod#field-ShopPayPaymentRequestDeliveryMethod.fields.maxDeliveryDate) * <-|[Shop​Pay​Payment​Request​Delivery​Method.minDeliveryDate](https://shopify.dev/docs/api/storefront/unstable/objects/ShopPayPaymentRequestDeliveryMethod#field-ShopPayPaymentRequestDeliveryMethod.fields.minDeliveryDate) ### Inputs with this scalar * [Shop​Pay​Payment​Request​Delivery​Method​Input.minDeliveryDate](https://shopify.dev/docs/api/storefront/unstable/input-objects/ShopPayPaymentRequestDeliveryMethodInput#fields-minDeliveryDate) * [Shop​Pay​Payment​Request​Delivery​Method​Input.maxDeliveryDate](https://shopify.dev/docs/api/storefront/unstable/input-objects/ShopPayPaymentRequestDeliveryMethodInput#fields-maxDeliveryDate)