HOW TO: Convert Short Time Format to Different Formats in Access 2000

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SUMMARY

This article shows you how to create sample functions that you can use to format the Format property's Short Time setting to its decimal equivalent, to convert minutes to Short Time, or to convert Short Time to minutes. Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.

Converting Short Time to a Decimal Format

The following sample function converts Short Time to a decimal format. In decimal format, valid time values range from .0 (00:00:00) to 999999 (23:59:59). The numeric value represents a fraction of one day. You can convert the numeric value into hours, minutes, and seconds by multiplying the numeric value by 24. This is demonstrated in step 2. To create the sample function, follow these steps:
  1. Create a module and type the following line in the Declarations section if it is not already there:
    Option Explicit
    					
  2. Type the following procedure:
    Function TimeToDec(MyTime)
       TimeToDec = CDbl(MyTime) * 24
    End Function
    					
  3. To test this function, type the following line in the Immediate window, and then press ENTER:
    ?TimeToDec(#6:30#)
    						
    Note that the Immediate window returns 6.5.

    NOTE: If you do not multiply CDbl(MyTime) by 24, the Immediate window returns 0.270833333333333

Converting Minutes to Short Time Format

To create a sample function that converts minutes to the Short Time format, follow these steps:
  1. Create a module and type the following line in the Declarations section if it's not already there:
    Option Explicit
    					
  2. Type the following procedure.
    Function MinToTime(MyMinute)
       MinToTime = MyMinute \ 60 & ":" & Format((Abs(MyMinute Mod 60)),"00")
    End Function
    					
  3. To test this function, type the following line in the Immediate window, and then press ENTER:
    ?MinToTime(390)
    						
    Note that the Immediate window returns 6:30.

Converting Short Time to Minutes

To create the sample function that converts Short Time to minutes, follow these steps:
  1. Create a module and type the following line in the Declarations section if it's not already there:
    Option Explicit
    					
  2. Type the following procedure:
    Function TimeToMin (MyTime)
       TimeToMin = CInt(CDbl(MyTime) * 24 * 60)
    End Function
    					
  3. To test this function, type the following line in the Immediate window, and then press ENTER:
    ?TimeToMin(#6:30#)
    						
    Note that the Immediate window returns 390.



REFERENCES

For additional information about calculating date/time values, please see the following articles in the Microsoft Knowledge Base:
210276 ACC2000: Storing, Calculating, and Comparing Date/Time Data
210604 ACC2000: Functions for Calculating and Displaying Date/Time Values
For more information about how to format Date/Time data types, click Microsoft Access Help on the Help menu, type format property - date/time type in the Office Assistant or the Answer Wizard, and then click Search to view the topic.










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Article ID: 210185 - Last Review: October 11, 2006 - Revision: 3.2
APPLIES TO
  • Microsoft Access 2000 Standard Edition
Keywords: 
kbhowto kbhowtomaster kbprogramming KB210185

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