Show the timezone when printing a data frame with a `POSIXct` column
14:22 26 Nov 2025

Is there a simple way (i.e., not involoving writing a print() method) to show the timezone when printing a data frame with a POSIXct column ?

as.data.frame(Sys.time())
#            Sys.time()
# 1 2025-11-26 17:18:45    ## <- show timezone (GMT) here

as.data.frame(Sys.time())[[1]]
# [1] "2025-11-26 17:18:48 GMT"
r dataframe posixct