diff --git a/BufferAPI/BufferService.cs b/BufferAPI/BufferService.cs
index 19923f5..1fc7ac6 100644
--- a/BufferAPI/BufferService.cs
+++ b/BufferAPI/BufferService.cs
@@ -4,6 +4,7 @@
 using System.Threading.Tasks;
 using AncoraMVVM.Rest;
 using Newtonsoft.Json;
+using System;
 
 namespace BufferAPI
 {
@@ -101,6 +102,75 @@ public async Task<HttpResponse<BufferUpdateCreation>> PostUpdate(string text,
         {
             return await PostUpdate(text, profiles.Select(p => p.Id));
         }
+
+        /// <summary>
+        /// Posts an update to the given social media profiles.
+        /// </summary>
+        /// <param name="update">BufferUpdateCreate object describing the update to create.</param>
+        /// <param name="profileIds">List with all the social media profile ids.</param>
+        /// <returns>HttpResponse with a BufferUpdateCreating object describing the result of the operation.</returns>
+        public async Task<HttpResponse<BufferUpdateCreation>> PostUpdate(BufferUpdateCreate update, IEnumerable<string> profileIds)
+        {
+            ParameterCollection param = new ParameterCollection();
+
+            foreach (var id in profileIds)
+                param.Add("profile_ids[]", id);
+
+            param.Add("text", update.Text);
+            param.Add("shorten", update.Shorten.ToString().ToLower());
+            param.Add("now", update.Now.ToString().ToLower());
+            param.Add("top", update.Top.ToString().ToLower());
+            param.Add("attachment", update.Attachment.ToString().ToLower());
+
+
+            // schedule
+            if (update.ScheduledAt != null && update.ScheduledAt != DateTime.MinValue )
+                param.Add("scheduled_at", update.ScheduledAtSeconds);
+
+            // media
+            if (update.Media.Link != null && update.Media.Link.Trim() != "")
+                param.Add("media[link]", update.Media.Link);
+
+            if (update.Media.Description != null && update.Media.Description.Trim()  != "")
+                param.Add("media[description]", update.Media.Description);
+
+            if (update.Media.Title != null && update.Media.Title.Trim() != "")
+                param.Add("media[title]", update.Media.Title);
+
+            if (update.Media.Picture != null && update.Media.Picture.Trim() != "")
+                param.Add("media[picture]", update.Media.Picture);
+
+            if (update.Media.Photo != null && update.Media.Photo.Trim() != "")
+                param.Add("media[photo]", update.Media.Photo);
+
+            if (update.Media.Thumbnail != null && update.Media.Thumbnail.Trim() != "")
+                param.Add("media[thumbnail]", update.Media.Thumbnail);
+
+
+            // retweet
+            if (update.Retweet.TweetId != null && update.Retweet.TweetId.Trim() != "")
+                param.Add("retweet[tweet_id]", update.Retweet.TweetId);
+
+            if (update.Retweet.Comment != null && update.Retweet.Comment.Trim() != "")
+                param.Add("retweet[comment]", update.Retweet.Comment);
+
+
+            var req = CreateRequest("updates/create.json", HttpMethod.Post, param);
+
+            return await Execute<BufferUpdateCreation>(req);
+        }
+
+        /// <summary>
+        /// Posts an update to the given social media profiles.
+        /// </summary>
+        /// <param name="update">BufferUpdateCreate object describing the update to create.</param>
+        /// <param name="profiles">List with all the social media profiles.</param>
+        /// <returns>HttpResponse with a BufferUpdateCreating object describing the result of the operation.</returns>
+        public async Task<HttpResponse<BufferUpdateCreation>> PostUpdate(BufferUpdateCreate update, IEnumerable<BufferProfile> profiles)
+        {
+            return await PostUpdate(update, profiles.Select(p => p.Id));
+        }
+
         #endregion
     }
 }
diff --git a/BufferAPI/BufferUpdate.cs b/BufferAPI/BufferUpdate.cs
index 4936d9b..3f59b93 100644
--- a/BufferAPI/BufferUpdate.cs
+++ b/BufferAPI/BufferUpdate.cs
@@ -81,4 +81,107 @@ public DateTime DueAt
         [JsonProperty("via")]
         public string Via { get; set; }
     }
+
+
+
+    /// <summary>
+    /// This class represents the media section of a new update to send to buffer
+    ///  <see href="https://buffer.com/developers/api/updates#updatescreate" />
+    /// </summary>
+    [JsonObject(MemberSerialization.OptIn)]
+    public class BufferUpdateMedia
+    {
+        //[JsonProperty("link")]
+        public string Link { get; set; }
+
+        //[JsonProperty("description")]
+        public string Description { get; set; }
+
+       // [JsonProperty("title")]
+        public string Title { get; set; }
+
+        //[JsonProperty("picture")]
+        public string Picture { get; set; }
+
+        //[JsonProperty("photo")]
+        public string Photo { get; set; }
+
+        //[JsonProperty("thumbnail")]
+        public string Thumbnail { get; set; }
+
+    }
+
+    /// <summary>
+    /// This class represents the retweet section of a new update to send to buffer
+    ///  <see href="https://buffer.com/developers/api/updates#updatescreate" />
+    /// </summary>
+    [JsonObject(MemberSerialization.OptIn)]
+    public class BufferUpdateRetweet
+    {
+        //[JsonProperty("tweet_id")]
+        public string TweetId { get; set; }
+
+        //[JsonProperty("comment")]
+        public string Comment { get; set; }
+
+    }
+
+
+
+
+    /// <summary>
+    /// This class represents a new update to send to buffer
+    ///  <see href="https://buffer.com/developers/api/updates#updatescreate" />
+    /// </summary>
+    [JsonObject(MemberSerialization.OptIn)]
+    public class BufferUpdateCreate
+    {
+        public BufferUpdateCreate()
+        {
+            Media = new BufferUpdateMedia();
+            Retweet = new BufferUpdateRetweet();
+
+            Shorten = true;
+            Attachment = true;
+        }
+
+
+        //   [JsonProperty("text")]
+        public string Text { get; set; }
+
+        //   [JsonProperty("shorten")]
+        public bool Shorten { get; set; }
+
+        //   [JsonProperty("now")]
+        public bool Now { get; set; }
+
+        //   [JsonProperty("top")]
+        public bool Top { get; set; }
+
+        //   [JsonProperty("media")]
+        public BufferUpdateMedia Media { get; set; }
+
+        //   [JsonProperty("attachment")]
+        public bool Attachment { get; set; }
+
+
+        public DateTime ScheduledAt { get; set; }
+
+        //    [JsonProperty("scheduled_at")]
+        public double ScheduledAtSeconds
+        {
+            get
+            {
+                return BufferAPI.TimeConversion.DateTimeToUnixTimestamp(ScheduledAt);
+            }
+        }
+
+        //   [JsonProperty("retweet")]
+        public BufferUpdateRetweet Retweet { get; set; }
+
+
+    }
+
+
+
 }
diff --git a/BufferAPI/TimeConversion.cs b/BufferAPI/TimeConversion.cs
new file mode 100644
index 0000000..a6ef094
--- /dev/null
+++ b/BufferAPI/TimeConversion.cs
@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace BufferAPI
+{
+    class TimeConversion
+    {
+        public static DateTime UnixTimeStampToDateTime(double? unixTimeStamp)
+        {
+            // Unix timestamp is seconds past epoch
+            System.DateTime dtDateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0, System.DateTimeKind.Utc);
+            dtDateTime = dtDateTime.AddSeconds(unixTimeStamp.Value).ToLocalTime();
+            return dtDateTime;
+        }
+
+        public static double DateTimeToUnixTimestamp(DateTime dateTime)
+        {
+            if (dateTime == null)
+            {
+                throw new Exception("Date Time is null, cannot convert.");
+            }
+            else
+            {
+                return (dateTime - new DateTime(1970, 1, 1).ToLocalTime()).TotalSeconds;
+            }
+        }
+    }
+
+}
\ No newline at end of file