CODEWITHSUNDEEP
c#restuwponedrive
sudarsanyes
sudarsanyes

Reputation: 3204

OneDrive api returning wrong last modified values

I have a C# UWP app that uses OneDrive REST APIs.

The app queries for the application folder and retrieves all the files from this special folder (app folder). 

string appFolderParameters = string.Concat(OneDriveApi, OneDriveAppsFolderPath, "/children", "?access_token=", App.Settings.Values["access_token"]); 
var appFolderMeetings = await client.GetStringAsync(appFolderParameters);
foreach (var file in files)
{
    string fileName = file["name"]?.ToString();
    string lastModifiedString = file["lastModifiedDateTime"]?.ToString();
}

While the query works fine, the value, especially the lastModifiedString is always 1 hour behind.

My PC TimeZone is set to "Automatic" and the Microsoft Account TimeZone is set to CET (same as my PC's). Any idea why the API returns a wrong lastModifiedString?

Here are a couple of screenshots to show this issue.

Last Updated Time in the browser: enter image description here

Last Updated Time in the API result/Visual Studio: enter image description here

Upvotes: 0

Views: 410

Answers (1)

Kris Vandermotten
Kris Vandermotten

Reputation: 10201

It looks like the lastModifiedDateTime simply is in UTC. In the winter, there is a one hour difference between CET and UTC.

To convert between local time and UTC, use the DateTime type, or even better, the DateTimeOffset type.

Upvotes: 1

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