[R] timeとtimezone

Rのtimezone関連あれこれ

□ List of tz database time zones
http://en.wikipedia.org/wiki/List_of_tz_database_time_zones

□ help(Sys.time)
Get Current Date, Time and Timezone
Sys.time()
Sys.Date()
Sys.timezone()

□ 時刻型への変換
as.POSIXct, as.POSIXlt

as.POSIXct("15/03/31", format="%y/%m/%d")
[1] "2015-03-31 JST"