// 在Startup.cs中配置
services.Configure<RequestLocalizationOptions>(options =>
{
    options.DefaultRequestCulture = new RequestCulture("en-US");
    options.SupportedCultures = new List<CultureInfo> { new CultureInfo("en-US") };
    options.SupportedUICultures = new List<CultureInfo> { new CultureInfo("en-US") };
});
// 在Linux服務(wù)器上設(shè)置時(shí)區(qū)
sudo timedatectl set-timezone UTC

# Linux安裝chrony服務(wù)
sudo apt install chrony -y
sudo systemctl enable chrony
sudo systemctl start chrony
# 驗(yàn)證同步狀態(tài)
chronyc tracking

// 創(chuàng)建時(shí)間服務(wù)客戶端
public class NtpClient
{
    public static DateTime GetNetworkTime()
    {
        const string ntpServer = "pool.ntp.org";
        var ntpData = new byte[48];
        ntpData[0] = 0x1B; // LeapIndicator = 0, VersionNum = 3, Mode = 3
        using(var socket = new Socket(AddressFamily.InterNetwork, 
                                    SocketType.Dgram, 
                                    ProtocolType.Udp))
        {
            socket.Connect(ntpServer, 123);
            socket.Send(ntpData);
            socket.Receive(ntpData);
            socket.Close();
        }
        ulong intPart = (ulong)ntpData[40] << 24 | (ulong)ntpData[41] << 16 |
                       (ulong)ntpData[42] << 8 | ntpData[43];
        ulong fractPart = (ulong)ntpData[44] << 24 | (ulong)ntpData[45] << 16 |
                          (ulong)ntpData[46] << 8 | ntpData[47];
        var milliseconds = (intPart * 1000) + ((fractPart * 1000) / 0x100000000L);
        var networkDateTime = new DateTime(1900, 1, 1).AddMilliseconds(milliseconds);
        return networkDateTime.ToLocalTime();
    }
}

# Dockerfile中加入時(shí)區(qū)設(shè)置
RUN ln -sf /usr/share/zoneinfo/UTC /etc/localtime
RUN echo "UTC" > /etc/timezone

// 使用ISO8601標(biāo)準(zhǔn)格式記錄日志
var log = new LoggerConfiguration()
    .WriteTo.Console(outputTemplate: "{Timestamp:yyyy-MM-ddTHH:mm:ss.fffZ} [{Level}] {Message}{NewLine}{Exception}")
    .CreateLogger();

// 使用DateTimeOffset替代DateTime
public class Order
{
    public DateTimeOffset CreatedTime { get; set; } = DateTimeOffset.UtcNow;
    public bool IsExpired() 
    {
        return DateTimeOffset.UtcNow > CreatedTime.AddMinutes(30);
    }
}

# Pod中添加時(shí)間同步sidecar
containers:
- name: time-sync
  image: busybox
  command: ["sh", "-c", "while true; do rdate -s time.nist.gov; sleep 3600; done"]

// 時(shí)間服務(wù)封裝示例
public class TimeService
{
    private DateTimeOffset _lastSyncTime;
    private TimeSpan _offset;
    public DateTimeOffset Now 
    {
        get 
        {
            try 
            {
                if((DateTimeOffset.UtcNow - _lastSyncTime).TotalHours > 1)
                {
                    _offset = NtpClient.GetNetworkTime() - DateTimeOffset.UtcNow;
                    _lastSyncTime = DateTimeOffset.UtcNow;
                }
                return DateTimeOffset.UtcNow + _offset;
            }
            catch
            {
                // 記錄日志并回退到本地時(shí)間
                return DateTimeOffset.UtcNow;
            }
        }
    }
}