How to calculate time with another time

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Seshadri posted on 2010-2-19 8:16 | Locked rated by 0 users

Dear user,

       Am doing a time calculation in navision, where am calculating a time + time, Is it possible to calculate or need exact c/Al code  for time calculation.

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Verified by Erik P. Ernst

In this case one of the operand should be Time whereas other as integer (in MilliSeconds)..

For more details have a look on Codeunit 416 DateTime Mgmt.

For example, following code will increment the initial time defined by 1 minute (60*1000  mili seconds):


TimeCalc:=010145T;
TimeCalc:=TimeCalc+60000;
MESSAGE('%1',TimeCalc);

-Dhan Raj Bansal

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Verified by Erik P. Ernst

In this case one of the operand should be Time whereas other as integer (in MilliSeconds)..

For more details have a look on Codeunit 416 DateTime Mgmt.

For example, following code will increment the initial time defined by 1 minute (60*1000  mili seconds):


TimeCalc:=010145T;
TimeCalc:=TimeCalc+60000;
MESSAGE('%1',TimeCalc);

-Dhan Raj Bansal

Linkedin Profile: http://in.linkedin.com/in/dhanrajbansal

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What always helps me is to realize that the Time data type is representing a time instance, like 1 o'clock. So wanting to add two time instances (two Time variables) doesn't make sense. BEcause what would the outcome of:

1:00 AM + 5:00 PM = ?

To calculate a new time instance based on a current time instance you need to add a time duration being the "integer (in MilliSeconds" Dhan Rai refers to. So the calculation is:

New Time Instance = Old Time Instance + Time Duration

or in NAV data types:

Time := Time + Integer

Hopes this makes sense.

Luc van Vugt, Imtech ICT
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Anfinnur replied on 2010-2-19 10:14 | Locked rated by 0 users

Luc van Vugt:
So wanting to add two time instances (two Time variables) doesn't make sense

Oh yes, it does. I have made some rathar large and timeconsuming batches, at I found it handy to know, when the batch is expected to end - an estimation. And at that time you may calc StartTime + EstimatedTimeLft = ExpectedEndTime.

Else - to calculate two times results in an integer. If you want the result in a time-datatype the formula is "ResultTime := 00T + (ActualTime - StartTime)" (00T allows type conversion from integer to time).

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But that is still not adding two time instance. Tongue Tied

StartTime + EstimatedTimeLft = ExpectedEndTime

This equation is of type:

New Time Instance = Old Time Instance + Time Duration

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Avril replied on 2012-3-30 17:52 | Locked rated by 0 users

How do you calculate the difference between 2 time instances ? I need to get a duration, based on a starting and ending time ie

 Duration = End time - Start time.

This however does not compile.

 

 

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What is you exact code?

Your basic logic is OK:

Avril:
Duration = End time - Start time

But the fact that it does not compile is probably due to soem error in the syntax of you code. So what's your code and also give the definitations of the variables included.

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Marco replied on 2012-12-21 17:31 | Locked rated by 0 users

Hello everybodySmile

I've to calculate a total time of a work adding two duration:

Total Time := (FinalTime1 - InitTime1) + (FinalTime2 - InitTime2). Is it possible?

What kind of types must be the variables?Is Total Time a integer in milliseconds?

Thank You so much

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Mohana replied on 2012-12-22 4:42 | Locked rated by 0 users

Yes Total Time should be Integer datatype and result will be in milliseconds..

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