roadie/Roadie.Api.Library/Extensions/DateTimeExt.cs

using System;

namespace Roadie.Library.Extensions
{
    public static class DateTimeExt
    {
        public static DateTime FromUnixTime(this long unixTime)
        {
            var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            return epoch.AddSeconds(unixTime);
        }

        public static long ToUnixTime(this DateTime date)
        {
            var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            return Convert.ToInt64((date - epoch).TotalSeconds);
        }
    }
}