dst_repeat_starttime: Find the text to POSIXct ambiguous interval.

In rwunderground: R Interface to Weather Underground API

Description

Assumes that DST transitions happen on hour boundaries, which is true almost everywhere, and that the wall clock shifts back and repeats exactly 1 hour, again true almost everywhere. This code relies on R and the OS to properly manage DST in all timezones.

Usage

dst_repeat_starttime(y, m, d, tz)

Arguments

y	the year
m	the month
d	the day
tz	the timezone

Value

list of two integers betweeen 0000 and 2359, hhmm format. the first integer is the beginning of the interval of clock times which correspond to 2 separate instants of time, the second is the end of that interval. The left endpoint is ambiguous, the right endpoint is not since it maps only to Standard Time.

rwunderground documentation built on May 2, 2019, 2:46 a.m.