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d_un
2013 Oct 04
2
Possible POSIXlt / wday glitch & bugs.r-project.org status
...You would expect the wday element to be invariant to the timezone of a date. That is, the same date/time instant of 5th October 2013 in both Australia/Sydney and UTC should be a Saturday (i.e. wday = 6). And indeed that is the case with 1 min past midnight on 5 October 2013:
```
library(lubridate)
d_utc <- ymd_hms(20131005000001, tz='UTC')
d_local <- ymd_hms(20131005000001, tz='Australia/Sydney')
as.POSIXlt(x=d_utc, tz=tz(d_utc))$wday # 6
as.POSIXlt(x=d_local, tz=tz(d_local))$wday # 6
```
But this isn't always the case. For example,
```
d_utc <- ymd_hms(2038100200000...