DateTime in C #

• DateTime
  • Field
    • DateTime.Now
    • DateTime.Date
    • DateTime.Year，DateTime.Month，DateTime.Day，DateTime.Hour，DateTime.Minute，DateTime.Second，DateTime.Millisecond
    • DateTime.DayOfWeek，DateTime.DayOfYear
    • DateTime.MaxValue
    • DateTime.MinValue
  • Method
    • DateTime.CompareTo
    • DateTime.Parse，DateTime.TryParse
    • DateTime.Add(TimeSpan value)
    • DateTime.AddYears，DateTime.AddMonths，DateTime.AddDays，DateTime.AddHours，DateTime.AddMinutes，DateTime.AddMilliseconds，DateTime.AddTicks
• TimeZoneInfo
• TimeSpan
• Time zone
  • DateTime.UtcNow
  • TimeZoneInfo.ConvertTimeFromUtc
  • TimeZoneInfo.ConvertTimeToUtc
• format
  • Use ToString (string format) function
    • The most common: "yyyy-MM-dd HH: mm: ss"
    •