如何在C#中通过Graph API更新用户邮箱时区

using Microsoft.Graph;
using Microsoft.Identity.Client;

string clientId = "YourClientId";
string clientSecret = "YourClientSecret";
string tenantId = "YourTenantId";

IConfidentialClientApplication confidentialClientApplication = ConfidentialClientApplicationBuilder
    .Create(clientId)
    .WithClientSecret(clientSecret)
    .WithTenantId(tenantId)
    .Build();

ClientCredentialProvider authProvider = new ClientCredentialProvider(confidentialClientApplication);

GraphServiceClient graphClient = new GraphServiceClient(authProvider);

string userId = "UserIdToUpdate";
User user = await graphClient.Users[userId].Request().GetAsync();

user.MailboxSettings.TimeZone = "YourTimeZoneId";
await graphClient.Users[userId].Request().UpdateAsync(user);