how does date and time exactly work?

Robert Mihali 2014.08.15 07:31

hello everybody,

I want to programm an EA, that opens at a certain time (which the user can define) pending orders and I have problems with this date and time functions like TimeCurrent().

Until now I have this:

extern datetime time = D'2014.08.15 11:10:00';

and now I want to compare this time with the TimeCurrent() to open a pending order. The Question is: what argument should I put in the bracket? I don't really understand the definition in the documentary

https://docs.mql4.com/dateandtime/timecurrent

The next question I have is: Is there the possibility to 'do math' with this datetime. For example if I have again the time defined like above, how can I define NewTime=time +3minutes ??

It would be very helpfull if somebody can answer. Thanks a lot

Simon Gniadkowski 2014.08.15 08:17 #1

cornesti:

hello everybody,

I want to programm an EA, that opens at a certain time (which the user can define) pending orders and I have problems with this date and time functions like TimeCurrent().

You need to understand what a datetime (<---- link, please click me ) type variable is . . . ". . . as the number of seconds elapsed since January 01, 1970"

If you want the datetime 3 minutes from now . . . TimeCurrent() + 3 * PERIOD_M1 * 60

Check for specific time Is there a better How I set the

William Roeder 2014.08.15 10:43 #2

cornesti: The Question is: what argument should I put in the bracket? The next question I have is: Is there the possibility to 'do math' with this datetime.	What bracket? Like this #define HR2400 (PERIOD_D1 * 60) // 86400 = 24 * 3600 int TimeOfDay(datetime when=0){ if(when == 0) when = TimeCurrent(); return( when % HR2400 ); } datetime DateOfDay(datetime when=0){ if(when == 0) when = TimeCurrent(); return( when - TimeOfDay(when) ); } //datetime Tomorrow( datetime when=0){ if(when == 0) when = TimeCurrent(); // return(DateOfDay(when) + HR2400); } //datetime Yesterday(datetime when=0){ if(when == 0) when = TimeCurrent(); // int iD1 = iBarShift(NULL, PERIOD_D1, DateOfDay(when) - 1); // return( iTime(NULL, PERIOD_D1, iD1) ); }

cornesti: The Question is: what argument should I put in the bracket?

The next question I have is: Is there the possibility to 'do math' with this datetime.

What bracket?

Like this

#define HR2400 (PERIOD_D1 * 60)  // 86400 = 24 * 3600
int      TimeOfDay(datetime when=0){ if(when == 0) when = TimeCurrent();
   return( when % HR2400 ); }
datetime DateOfDay(datetime when=0){ if(when == 0) when = TimeCurrent();
   return( when - TimeOfDay(when) ); }
//datetime Tomorrow( datetime when=0){ if(when == 0) when = TimeCurrent();
//   return(DateOfDay(when) + HR2400); }
//datetime Yesterday(datetime when=0){ if(when == 0) when = TimeCurrent();
//   int iD1 = iBarShift(NULL, PERIOD_D1, DateOfDay(when) - 1);
//   return( iTime(NULL, PERIOD_D1, iD1) ); }

Robert Mihali 2014.08.15 10:54 #3

thanks a lot guys, now I know how to do it. With the bracket I meant the one after TimeCurrent(). But it's the same think as in Symbol(), doesn't need any input arguments.

whish you a nice weekend

[Branch closed!] EURUSD - FOREX - Trends, Forecasts Machine learning in trading:

William Roeder 2014.08.16 10:36 #4

cornesti: With the bracket I meant the one after TimeCurrent().

Choose your words better

Character	US English	UK English	India
()	Parentheses	Braces, round brackets, curved brackets, oval brackets
[]	Brackets	Square Brackets
{}	Braces	Curly brackets	flower bracket
<>	Angle brackets (or chevrons)

Simon Gniadkowski 2014.08.16 13:53 #5

WHRoeder:

cornesti: With the bracket I meant the one after TimeCurrent().

Choose your words better

Character	US English	UK English	India
()	Parentheses
[]	Brackets	Square Brackets
{}	Braces	Curly brackets	flower bracket
<>	Angle brackets (or chevrons)

( ) these are also known as Brackets in my experience of UK English . . . almost 49 years ;-)

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