working with date function in access

my company gives comptime with strings attached.  first off comptime expires one year after it has been earned or 26 pay periods.  

How do I enter a future date that is one later than the current date?  

and

How do I compute pay periods that the comptime was earned in?
sptechAsked:
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Kelvin SparksCommented:
To add a year use DateAdd('y",1,yourstartdate).

Counting fortnights is a bit harder as there's no frthight concept I know of in Access.

Best to count days and divide by 14.

Something like Int(DATEDIFF(:d",oldersate, newerdate)/14) would give you the number of completed fortnights


Kelvin
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Gustav BrockCIOCommented:
FutureDate = DateAdd("yyyy", 1, Date)

> 26 pay periods.  
How long is a pay period?

/gustav
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sptechAuthor Commented:
I figured out the DateAdd function so thanks to both of you for that.  catus_data it works out to be every 14.03 days.  That is why some months have 2 pay periods and  twice a year we have 3 pay periods. below is the pay period schedule for 2013:

1/10 and 1/24, 2/7 and 2/21, 3/7 and 3/21, 4/4 and 4/18, 5/2 and 5/16 and 5/30, 6/13 and 6/27, 7/11 and 7/25, 8/8 and 8/22, 9/5 and 9/19, 10/3 and 10/17 and 10/31, 11/14 and 11/27 (thanksgiving 11/28 so pay period backone day), 12/12 and 12/26.

so an employee travels to the home office on 2/7 he is in pay period 3. on returning from the home office on 3/7 he is in pay period 4.  

How do I:

1) determine the pay period not just for 2013 but as far out as say 2020?  
2) once that is determined, how do I determine which pay period(s) my traveler traveled in?
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Gustav BrockCIOCommented:
To calculate that you will need a start date from which you add up the 14.03.

You also must be sure how to round the accumulated .03 days. Will one day be added when you pass 0.5 day after 17 periods, or would it not happen until a full day as accumulated after 34 periods? And will the remaining part (0.01 or 0.02) be carried over for the next 17 or 33/34 periods?

Further, you must have a list of public holidays which will shift the pay date one day backwards.

Having this you can just look up the travel start and end date for your travelers.

/gustav
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sptechAuthor Commented:
I am dropping the 26 pay period from the calculations.  My users will just have to add this manually.
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Gustav BrockCIOCommented:
OK.

/gustav
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