...
{
  // On weekdays, ordering open from 8AM-4:59:59PM.
  "@type": "OpeningHoursSpecification",
  "opens": "T08:00:00",
  "closes": "T17:00:00",
  "dayOfWeek": [
    "Monday",
    "Tuesday",
    "Wednesday",
    "Thursday",
    "Friday"
  ],
  "deliveryHours": [
    {
      // Fulfillment between 8AM-4:59:59PM on weekdays.
      "@type": "AdvanceServiceDeliveryHoursSpecification",
      "opens": "T08:00:00",
      "closes": "T17:00:00",
      "dayOfWeek": [
        "Monday",
        "Tuesday",
        "Wednesday",
        "Thursday",
        "Friday"
      ],
      "serviceTimeInterval": "PT15M",
      "advanceBookingRequirement": {
        "minValue": 60,
        "maxValue": 8640,
        "unitCode": "MIN"
      }
    },
    {
      // Fulfillment between 8AM-6:59:59PM on weekends (even for orders placed on a
      // weekday).
      "@type": "AdvanceServiceDeliveryHoursSpecification",
      "opens": "T08:00:00",
      "closes": "T19:00:00",
      "dayOfWeek": [
        "Saturday",
        "Sunday"
      ],
      "serviceTimeInterval": "PT15M",
      "advanceBookingRequirement": {
        "minValue": 60,
        "maxValue": 8640,
        "unitCode": "MIN"
      }
    }
  ]
},
{
  // On weekends, one can place orders upto 6:59:59PM.
  "@type": "OpeningHoursSpecification",
  "opens": "T08:00:00",
  "closes": "T19:00:00",
  "dayOfWeek": [
    "Saturday",
    "Sunday"
  ],
  "deliveryHours": [
    {
      // But fulfillment on weekdays is only till 4:59:59PM.
      "@type": "AdvanceServiceDeliveryHoursSpecification",
      "opens": "T08:00:00",
      "closes": "T17:00:00",
      "dayOfWeek": [
        "Monday",
        "Tuesday",
        "Wednesday",
        "Thursday",
        "Friday"
      ],
      "serviceTimeInterval": "PT15M",
      "advanceBookingRequirement": {
        "minValue": 60,
        "maxValue": 8640,
        "unitCode": "MIN"
      }
    },
    {
      // Fulfillment on weekends is till 6:59:59PM.
      "@type": "AdvanceServiceDeliveryHoursSpecification",
      "opens": "T08:00:00",
      "closes": "T19:00:00",
      "dayOfWeek": [
        "Saturday",
        "Sunday"
      ],
      "serviceTimeInterval": "PT15M",
      "advanceBookingRequirement": {
        "minValue": 60,
        "maxValue": 8640,
        "unitCode": "MIN"
      }
    }
  ]
}
...