WireMock.Net/src/WireMock.Net.OpenApiParser/Utils/DateTimeUtils.cs

using System;
using System.Globalization;

namespace WireMock.Net.OpenApiParser.Utils
{
    internal static class DateTimeUtils
    {
        public static string ToRfc3339DateTime(DateTime dateTime)
        {
            return dateTime.ToString("yyyy-MM-dd'T'HH:mm:ss.fffzzz", DateTimeFormatInfo.InvariantInfo);
        }

        public static string ToRfc3339Date(DateTime dateTime)
        {
            return dateTime.ToString("yyyy-MM-dd", DateTimeFormatInfo.InvariantInfo);
        }
    }
}