Hi Iam working on internet cafe project(prepaid)  Ihave 2 editboxes named value (number)  and period (time)  Iwant full  function to count the period from value .
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What do u mean by period, and what is value??
please give example of data and the output you want, example:

value = 50
period (time) = 10 hours or (time) = '12:23 pm'

just to agree with motaz, give a result-sample
If I understand u, suppose that value is the money, and period is the time payed for that amount of money, and 1$ = 1 hour (60 minutes) of time, then the function could be:

function GetPeriod(Value: Double): Integer;
  Result:= Round(Value * 60);


  edPeriod.Text:= IntToStr(GetPeriod(StrToFloat(edValue.Text)));


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I forget to mention that the result is minutes, for example

if you enter 1 you will get 60 minutes
2 = 120 minutes, and so on

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