| Форумы
ЧАТ |
Орешник |
|
| Форумы -» | Основная («Начинающим»)/ Базы / WinAPI / Компоненты / Сети / Media / Игры / Corba и COM / KOL / FreePascal / .Net / Прочее / RSDN.ORG |
|
| ||
|
|
Новости |
Поиск |
FAQ |
Статьи |
Книги |
Новости VCL
| | Форумы ЧАТ |
Орешник |
|
| |||
| |||
| |||
« предыдущая ветвь | форум | следующая ветвь »
time difference [KOL]
Boguslaw © (2010-03-01 21:28:00)How to compute how many hours/minutes/seconds are between two TDateTime in KOL ? Something is wrong.
I tried this code from Delphi but it works wrong:
dt := Now- dtStart;
f := frac(dt);
Hours := trunc(f*24);
Minutes := trunc(f*24*60)-Hours*60;
Seconds := trunc(f*24*60)-Hours*60-Minutes*60*60;
Vladimir Kladov (2010-03-02 18:35:00) [1]What is dtStart? How it was calculated / obtained /... ?
Dufa (2010-03-02 09:52:00) [2]//[TDateTime TYPE DEFINITION]
type
//TDateTime = Double; // well, it is already defined so in System.pas
{* Basic date and time type. Integer part represents year and days (as is,
i.e. 1-Jan-2000 is representing by value 730141, which is a number of
days from 1-Jan-0001 to 1-Jan-2000 inclusively). Fractional part is
representing hours, minutes, seconds and milliseconds of a day
proportionally (like in VCL TDateTime type, e.g. 0.5 = 12:00, 0.25 = 6:00,
etc.). }
| |
