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leopard date bug?
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leopard date bug?


  • Subject: leopard date bug?
  • From: Donald Hall <email@hidden>
  • Date: Sun, 25 Nov 2007 23:31:23 -0700

Can anyone explain this? Looks like a serious bug to me (note differing results for 18, 20, and 100 years in the future):

Test script
---------------------------------------------------------------------------
set __today to (current date)

set newDate to __today + 10 * 365.25 * days
log newDate

set newDate to __today + 12 * 365.25 * days
log newDate

set newDate to __today + 14 * 365.25 * days
log newDate

set newDate to __today + 16 * 365.25 * days
log newDate

set newDate to __today + 17 * 365.25 * days
log newDate

set newDate to __today + 18 * 365.25 * days
log newDate

set newDate to __today + 20 * 365.25 * days
log newDate

set newDate to __today + 100 * 365.25 * days
log newDate
-------------------------------------------------
End of test script

Leopard (10.5.0) result:
--------------------------------------------------

tell current application
	current date
		date "Sunday, November 25, 2007 11:17:29 PM"
	(*Saturday, November 25, 2017 11:17:29 AM*)
	(*Monday, November 25, 2019 11:17:29 PM*)
	(*Thursday, November 25, 2021 11:17:29 AM*)
	(*Saturday, November 25, 2023 11:17:29 PM*)
	(*Monday, November 25, 2024 5:17:29 AM*)
	(*Friday, September 18, 2009 12:46:20 AM*)
	(*Friday, September 18, 2009 12:44:54 AM*)
	(*Friday, September 18, 2009 12:43:28 AM*)
end tell


Tiger result: --------------------------------------------------- tell current application current date date "Sunday, November 25, 2007 11:24:21 PM" (*Saturday, November 25, 2017 11:24:21 AM*) (*Monday, November 25, 2019 11:24:21 PM*) (*Thursday, November 25, 2021 11:24:21 AM*) (*Saturday, November 25, 2023 11:24:21 PM*) (*Monday, November 25, 2024 5:24:21 AM*) (*Tuesday, November 25, 2025 11:24:21 AM*) (*Thursday, November 25, 2027 11:24:21 PM*) (*Saturday, November 26, 2107 11:24:21 PM*) end tell

--
Donald S. Hall, Ph.D.
Apps & More Software Design, Inc.
email@hidden
http://www.appsandmore.com
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