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Re: current date - 1 day?
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Re: current date - 1 day?


  • Subject: Re: current date - 1 day?
  • From: Matthew Smith <email@hidden>
  • Date: Tue, 17 Feb 2004 18:28:29 +1100

on 17/02/2004 17:59, Stephen Schaefer at email@hidden wrote:

> Probably simple newbie question, so hopefully a simple answer: why
> does "yesterday" result in "-86383" instead of 16 (as in today is the
> 17th, so yesterday would be the 16th)? Thanks
>
> set theDate to current date
> set d to day of theDate
> set m to month of theDate
> set y to year of theDate
> set ts to time string of theDate
> set yesterday to (d) - (1 * days)

Here's your problem. The variable d would be 17. All you need to do to get
it to be 16 is minus 1 from it, not 1 * days. 1 * days is the number of
seconds in a day, I believe. You subtract it from a date variable.

set yesterday to d - 1

But then this won't work if d is 1. Yesterday will then be 0.

You should probably do:
set theDate to current date
set yesterdayDate to theDate - (1 * days)

You will then have 2 dates which are 24 hours apart. You can then extract
the date items from each.

--
Matthew Smith
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References: 
 >current date - 1 day? (From: Stephen Schaefer <email@hidden>)

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