Subtract seconds

[boniakowski]

Please I need to subtract two times and I fail to understand how. 

 

example: I have a start time: 00:00:00 

and a final time: 00:00:10 

 

the final time I subtract 3 seconds or is 00:00:03 

 

so my end result will be the final time -3 seconds 

 

00:00:10 - 00:00:03 = 00:00:07 

 

as I should since I've tried tickstotime timetoticks etc and I fail to deduce how to do it simply. 

 

thank you very much again for your help.

[JohnOne]

_DateDiff Possibly.

[boniakowski]

_DateDiff Possibly.

i don´t think so, because use date start and i´m looking only time

this is the help of _DateDiff

$sStartDate Input Start date in the format "YYYY/MM/DD[ HH:MM:SS]"

$sEndDate Input End date in the format "YYYY/MM/DD[ HH:MM:SS]"

Edited July 10, 2014 by boniakowski

[JohnOne]

#include <Date.au3>
#include <MsgBoxConstants.au3>

; subtract 3 seconds from current time
$sNewDate = _DateAdd('s', -3, _NowCalc())
MsgBox($MB_SYSTEMMODAL, "", "Current time -3 seconds: " & $sNewDate)

[jguinch]

#Include <Date.au3>

$diff1 = _TimeDiff("00:00:10", "00:00:03")
ConsoleWrite($diff1 & @CRLF)


Func _TimeDiff($sTime1, $sTime2)
    Local $iH, $iM, $iS
    If NOT StringRegExp($sTime1 & "-" & $sTime2, "\d\d:\d\d:\d\d-\d\d:\d\d:\d\d") Then Return SetError(1, 0, 0)
        
    Local $iDiff = _DateDiff( "s", "1970/01/01 " & $sTime1, "1970/01/01 " & $sTime2) & 100
    _TicksToTime( Abs($iDiff), $iH, $iM, $iS)
    If @error Then Return SetError(2, 0, 0)
    
    Local $sReturn = StringFormat("%02s", $iH) & ":" & StringFormat("%02s", $iM) & ":" & StringFormat("%02s", $iS)
    If $iDiff > 0 Then $sReturn = "-" & $sReturn
    
    Return $sReturn
EndFunc

Edited July 10, 2014 by jguinch

[boniakowski]

#include <Date.au3>
#include <MsgBoxConstants.au3>

; subtract 3 seconds from current time
$sNewDate = _DateAdd('s', -3, _NowCalc())
MsgBox($MB_SYSTEMMODAL, "", "Current time -3 seconds: " & $sNewDate)

 

Ok your example work fine but always with a date _NowCalc() return date format, i don´t need a date format, i only need a Result of TIME in seconds.

$StartTime=("00:00:00")

$StopTime=("00:00:10")

$Difference=("00:00:03")

$Result=($StopTime-$Difference)

[JLogan3o13]

Something like this, perhaps? I'm sure a RegEx master will wander by to improve:

#include <Date.au3>
$startTime = _NowTime(5)
$finishTime = StringLeft($startTime, 6) & (StringRight($startTime, 2) - 3)

MsgBox(0, $startTime, $finishTime)

[JohnOne]

Ok your example work fine but always with a date _NowCalc() return date format, i don´t need a date format, i only need a Result of TIME in seconds.

$StartTime=("00:00:00")

$StopTime=("00:00:10")

$Difference=("00:00:03")

$Result=($StopTime-$Difference)

It's just a bit of jiggery pokery to get it how you want.

Have a try to make a function which takes hh:mm:ss and returns same.

The function can add yyyy/mm/dd to do the calcs and remove it to return what you need.

[boniakowski]

#Include <Date.au3>

$diff1 = _TimeDiff("00:00:10", "00:00:03")
ConsoleWrite($diff1 & @CRLF)


Func _TimeDiff($sTime1, $sTime2)
    Local $iH, $iM, $iS
    If NOT StringRegExp($sTime1 & "-" & $sTime2, "\d\d:\d\d:\d\d-\d\d:\d\d:\d\d") Then Return SetError(1, 0, 0)
        
    Local $iDiff = _DateDiff( "s", "1970/01/01 " & $sTime1, "1970/01/01 " & $sTime2) & 100
    _TicksToTime( Abs($iDiff), $iH, $iM, $iS)
    If @error Then Return SetError(2, 0, 0)
    
    Local $sReturn = StringFormat("%02s", $iH) & ":" & StringFormat("%02s", $iM) & ":" & StringFormat("%02s", $iS)
    If $iDiff > 0 Then $sReturn = "-" & $sReturn
    
    Return $sReturn
EndFunc

It´s i am looking for, thanks for your help.

Thanks too guys: 

JohnOne

 

JLogan3o13

 

yours answers help to open my mind too.

Thank tou very much.

Solved.