xojo.core.dateInterval ignoring timeZone?

General
1

Is xojo.core.dateInterval supposed to ignore whether or not a timeZone is associated with a date object? Lets say I have a date object that I assigned a time to, but didn’t assign the timezone (I just hard-assigned the utc time). I have another date that is the system time (which is in cdt), but used the timezone property to create a date object with its corresponding utc time. When I using xojo.core.dateInterval to compare the two… I get a difference of 4 hours, even though the two date objects appears to be the same when I use:

… .toText(xojo.core.locale.raw, xojo.core.date.formatStyles.full, xojo.core.date.formatStyles.full)

I don’t know if I’m doing something wrong or not; however, this seems to be completely the case in my scenario. Just want some clarification, as there is no mention in the documentation that is does. Thanks!

2

The two Date constructors require a timezone. How did you not “assign a timezone”? Can you show some sample code?

3

I created one using:

dim myDateObject as xojo.core.date
myDateObject = xojo.core.date.fromText(“2015-05-05 15:15:15”)

That one didn’t need a timeZone associated. I may be doing it wrong… completely wrong, hahaha.

EDIT: Come to think of it, that one didn’t require a ‘new’ statement. Hmmmm… yeah, I think I’m overlooking something here.

4

I forgot about FromText. That gives you a date in the current time zone. This is my test code:

  Dim myDate As Xojo.Core.Date
  myDate = Xojo.Core.Date.FromText("2015-05-05 15:15:15")
  
  Dim testDate As New Xojo.Core.Date(2015, 5, 5, 15, 15, 15, Xojo.Core.TimeZone.Current)
  
  ' myDate is the same as testDate
  ' both have SecondsFrom1970 = 1430853315
  ' both have same current TimeZone (America/New_York)
  
  Dim interval As xojo.Core.DateInterval
  interval = testDate - myDate
  ' interval is all 0
5

[quote=214171:@Paul Lefebvre]I forgot about FromText. That gives you a date in the current time zone. This is my test code:

[code]
Dim myDate As Xojo.Core.Date
myDate = Xojo.Core.Date.FromText(“2015-05-05 15:15:15”)

Dim testDate As New Xojo.Core.Date(2015, 5, 5, 15, 15, 15, Xojo.Core.TimeZone.Current)

’ myDate is the same as testDate
’ both have SecondsFrom1970 = 1430853315
’ both have same current TimeZone (America/New_York)

Dim interval As xojo.Core.DateInterval
interval = testDate - myDate
’ interval is all 0
[/code][/quote]

Going back to the documentation (.fromText)…
“Converts a textual date to an actual date using the optional locale”
I completely overlooked that… so that was, in fact, the issue. Appreciate the help Paul. Works like a champ now with the appropriate changes…