R 未识别时区

随着最近Ubuntu(23.10 mantic)的更新，我的R不再识别"US/Eastern".

sessionInfo()
# R version 4.3.2 (2023-10-31)
# Platform: x86_64-pc-linux-gnu (64-bit)
# Running under: Ubuntu 23.10
# Matrix products: default
# BLAS:   /opt/R/4.3.2/lib/R/lib/libRblas.so 
# LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/liblapack.so.3;  LAPACK version 3.11.0
# locale:
#  [1] LC_CTYPE=C.UTF-8       LC_NUMERIC=C           LC_TIME=C.UTF-8        LC_COLLATE=C.UTF-8     LC_MONETARY=C.UTF-8    LC_MESSAGES=C.UTF-8   
#  [7] LC_PAPER=C.UTF-8       LC_NAME=C              LC_ADDRESS=C           LC_TELEPHONE=C         LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C   
# time zone: America/New_York
# tzcode source: system (glibc)
# attached base packages:
# [1] stats     graphics  grDevices utils     datasets  methods   base     
# other attached packages:
# [1] r2_0.10.0
# loaded via a namespace (and not attached):
#  [1] compiler_4.3.2  clipr_0.8.0     fastmap_1.1.1   cli_3.6.2       tools_4.3.2     htmltools_0.5.7 rmarkdown_2.25  knitr_1.45      xfun_0.41      
# [10] digest_0.6.34   rlang_1.1.3     evaluate_0.23  

lubridate::with_tz(Sys.time(), tzone = "US/Eastern")
# Warning in with_tz.default(Sys.time(), tzone = "US/Eastern") :
#   Unrecognized time zone 'US/Eastern'
# [1] "2024-03-18 13:49:56"

然而，在一个类似配置(R—wise)的22.04 jammy系统上，它工作得很好.

sessionInfo()
# R version 4.3.2 (2023-10-31)
# Platform: x86_64-pc-linux-gnu (64-bit)
# Running under: Ubuntu 22.04.4 LTS
# Matrix products: default
# BLAS:   /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3
# LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/libopenblasp-r0.3.20.so;  LAPACK version 3.10.0
# locale:
#  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8     LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8    LC_PAPER=en_US.UTF-8       LC_NAME=C                  LC_ADDRESS=C               LC_TELEPHONE=C             LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
# time zone: Etc/UTC
# tzcode source: system (glibc)
# attached base packages:
# [1] stats     graphics  grDevices utils     datasets  methods   base
# loaded via a namespace (and not attached):
# [1] compiler_4.3.2

lubridate::with_tz(Sys.time(), tzone = "US/Eastern")
# [1] "2024-03-18 09:49:19 EDT"

为什么一个正常识别的TZ变得不可用？

这在操作系统本身是真的，不仅仅是在R中:

$ TZ="America/New_York" date
Mon Mar 18 10:22:03 AM EDT 2024
$ TZ="US/Eastern" date
Mon Mar 18 02:22:07 PM  2024

(注意第二个输出中缺少的TZ)