What is TDateTime?
What is TDateTime?
TDateTime is the C++ analog for the Delphi TDateTime data type. The TDateTime class inherits a val data member–declared as a double–that holds the date-time value. The integral part of a TDateTime value is the number of days that have passed since December 30, 1899.
How do I get the current time in Delphi?
“get current date delphi” Code Answer
- var.
- currentDate: TDateTime;
- begin.
- currentDate := Now;
- ShowMessage(DateToStr(currentDate)); //Show the current date.
- ShowMessage(TimeToStr(currentDate)); //Show the current time.
- end;
Which is the integer part of the tdatetime type?
The TDateTime type stores a date and time as the number of days since the start of the day on December 30, 1899, which is the standard used in OLE automation. The integer part is the number of days, and the fractional part specifies the time of day.
How is the tdatetime value stored in Delphi?
The TDateTime type holds a date and time value. It is stored as a Double variable, with the date as the integral part, and time as fractional part. The date is stored as the number of days since 30 Dec 1899. It really should be 31 Dec is. It appears that the reason for Delphi starting at 30 Dec 1899 is to make it as compatible as possible
Which is the maximal correct date supported by tdatetime?
The fractional part of a TDateTime value is the time of day. The maximal correct date supported by TDateTime values is limited to 12/31/9999 23:59:59:999. All values that go beyond this date cause errors and exceptions in most routines that operate with TDateTime values. TDateTime supports negative values too.
How to add seconds to a tdatetime variable?
I would like to add seconds to a TDateTime variable, so that the result is the top of the minute. For example, if it’s 08:30:25, I want change the TDateTime variable to store 08:31:00.