Strange time stamp problem

[hiromi3]

Hello,
I am using WordPressSharp with VS2017 on Windows10.
When I posted a new post with the following settings,
post.PublishDateTime = DateTime.Now;
post.Status = "publish";

I could successfully post.
However, I found a problem.

The Date/Time of the post is 9 hours future in edit window of the post.
But, the Date/Time of the post is 1 minutes before in posts list window.(Good)

My local time is UTC+9.

Then I changed post parameter as below and posted.
post.PublishDateTime = UTC time

The Date/Time of the post is 1 minutes before in edit window of the post.(Good)
But, the Date/Time of the post is 9 hours before in posts list window.

I tried many things but I could not solve the 9 hours difference.
If the post has this strange time stamp,
the client.GetPosts() fails with the following error message.

'response contains invalid dateTime value [response : array mapped to type Post[] : element 0 : struct mapped to type Post : member FeaturedImage mapped to type Object : struct mapped to XmlRpcStruct : member date_created_gmt : dateTime]'

If you know the solution, please let me know.

[Blackcat156]

Hello, I got the problem by adjusting the time setting of WordPress.

I use GetPost () in a different time; I won't make a mistake.
If you don't want to adjust the time of WordPress, you can choose

GetPost.PublishDateTime.AddHours(-9);

Now these two methods are enough to solve the problem, and if there is a better way to tell me

[hiromi3]

Thank you for your reply.
I know the WordPress Timezone setting menu in your captured image and I am setting it UTC+9 .
I could subtract nine hours by your suggested AddHours() method.

But, my simple question is why these time stamps have different values.

The Date/Time of the post is 9 hours future in edit window of the post.
But, the Date/Time of the post is 1 minutes before in posts list window.(Good)

When I post WordPress content manually without using C#,
these time stamps are exactly same value.

Have you ever experienced a time stamp problem that I reported, when you posted by using C# with WordPressSharp library?

[Blackcat156]

Hello, I now understand the reason for this problem.
I grabbed the content sent to the server
The time parameters are as follows:
<member> <name>post_date</name> <value> <dateTime.iso8601>20170413T07:21:04</dateTime.iso8601> </value> </member> <member> <name>post_modified</name> <value> <dateTime.iso8601>20170413T07:21:04</dateTime.iso8601> </value> </member>
As you can see, time is using dateTime. iso8601
But most of the time, servers are UTC World Standard Time.
This time is eight hours apart from UTC time.
So should
DateTime dateTime = post.PublishDateTime.AddHours(-8);
I don't know if you and I have the same problem. I can only tell you what I found.

The following is a complete send request

<?xml version="1.0"?> <methodCall> <methodName>wp.editPost</methodName> <params> <param> <value> <i4>1</i4> </value> </param> <param> <value> <string>username</string> </value> </param> <param> <value> <string>pass</string> </value> </param> <param> <value> <i4>userid</i4> </value> </param> <param> <value> <struct> <member> <name>post_id</name> <value> <string>post_id</string> </value> </member> <member> <name>post_type</name> <value> <string>post</string> </value> </member> <member> <name>post_title</name> <value> <string>title</string> </value> </member> <member> <name>post_status</name> <value> <string>publish</string> </value> </member> <member> <name>post_date</name> <value> <dateTime.iso8601>20170413T07:21:04</dateTime.iso8601> </value> </member> <member> <name>post_modified</name> <value> <dateTime.iso8601>20170413T07:21:04</dateTime.iso8601> </value> </member> <member> <name>post_content</name> <value> <string>content</string> </value> </member> <member> <name>post_author</name> <value> <string>56767</string> </value> </member> <member> <name>post_name</name> <value> <string>162445</string> </value> </member> <member> <name>link</name> <value> <string>https://acg12.com/162445/</string> </value> </member> <member> <name>custom_fields</name> <value> <array> <data /> </array> </value> </member> <member> <name>post_parent</name> <value> <string>0</string> </value> </member> <member> <name>terms</name> <value> <struct> <member> <name>category</name> <value> <array> <data> <value> <string>5977</string> </value> <value> <string>5978</string> </value> </data> </array> </value> </member> </struct> </value> </member> <member> <name>post_excerpt</name> <value> <string /> </value> </member> <member> <name>comment_status</name> <value> <string>open</string> </value> </member> </struct> </value> </param> </params> </methodCall>

[Blackcat156]

I know that the difference between UTC time and ISO8601 is the way of expression.
Simply put. Iso8601 is a UTC time representation
I don't know why time has to be reduced by eight hours, but I can only do that.

[hiromi3]

Hi,
Thank you for your reply to the time stamp problem.
Currently, I am not using WordPressSharp, because I am doing JavaScript programming mainly.
So, if I return to Csharp programming again, I want to test again by following your report.
I think that the WordPressSharp is a great tool, so I hope you continue to develop and improve it.