getSymbols.yahoo ignores exchange TZ when converting timestamps to Date

[joshuaulrich]

From StackOverflow: When I use getSymbol() with periodicity = "weekly", the date are incorrect

library(quantmod)
hsbc <- getSymbols("0011.HK", periodicity = "weekly", auto.assign = FALSE)
head(.indexwday(hsbc))  # Sunday
## [1] 0 0 0 0 0 0
packageVersion("quantmod")
## [1] '0.4.24'