get rid of internal vs system tzone diff

git-svn-id: https://svn.r-project.org/R/trunk@87359 00db46b3-68df-0310-9c12-caf00c1e9a41

Author: maechler

tests/datetime.R

@@ -22,8 +22,10 @@ as.POSIXct("2040-07-01 12:00")
 
 Sys.setenv(TZ = "EST5EDT")  # also pretty much portable.
 ## However, tzdata 2024b changed this from EST to LMT (and by 238s)
+## IGNORE_RDIFF_BEGIN
 (z <- as.POSIXct("1848-01-01 12:00"))
 c(unclass(z))
+## IGNORE_RDIFF_END
 ## see comment above
 as.POSIXct("2040-01-01 12:00")
 as.POSIXct("2040-07-01 12:00")

tests/datetime.Rout.save

@@ -1,5 +1,5 @@
 
-R Under development (unstable) (2024-09-12 r87140) -- "Unsuffered Consequences"
+R Under development (unstable) (2024-11-21 r87357) -- "Unsuffered Consequences"
 Copyright (C) 2024 The R Foundation for Statistical Computing
 Platform: aarch64-apple-darwin23.6.0
 
@@ -49,10 +49,12 @@ Type 'q()' to quit R.
 > 
 > Sys.setenv(TZ = "EST5EDT")  # also pretty much portable.
 > ## However, tzdata 2024b changed this from EST to LMT (and by 238s)
+> ## IGNORE_RDIFF_BEGIN
 > (z <- as.POSIXct("1848-01-01 12:00"))
 [1] "1848-01-01 12:00:00 LMT"
 > c(unclass(z))
 [1] -3849923038
+> ## IGNORE_RDIFF_END
 > ## see comment above
 > as.POSIXct("2040-01-01 12:00")
 [1] "2040-01-01 12:00:00 EST"