C# 时间戳

DateTime dateTime = DateTime.Now; // 当前日期时间
long timestamp = (long)dateTime.Subtract(new DateTime(1970, 1, 1)).TotalMilliseconds;



// 假设时间戳为整数类型（毫秒级）
//long timestamp2 = 1638763200000;
DateTime dateTime2 = DateTimeOffset.FromUnixTimeMilliseconds(timestamp).DateTime;