"ct" 和 "lt"（在 POSIXct 和 POSIXlt 中）是什么意思？
What do "ct" and "lt" (in POSIXct and POSIXlt) mean?
我很感兴趣，"ct" 和 "lt"（在 POSIXct 和 POSIXlt 中）是什么意思。它们是某种缩写吗？例如，"ct" 是否表示 "calendar time" 和 "lt" 其他意思？
ct = 连续时间，lt = 列表时间
和提问者一样（我怀疑），我发现理解首字母缩略词有助于我记住 when/how 并使用它们。
我找不到任何权威的 POSIX 参考资料。
我自己正在调查这个问题，这个问题出现在我的搜索结果中。
我已经看到了这个问题的几个答案...但他们显然都错了！这是最终答案：
POSIXct
The basic POSIX measure of time, calendar time, is
the number of seconds since the beginning of 1970, in
the UTC timezone (GMT as described by the French).
POSIXlt
The corresponding R class we called POSIXlt (where
the ‘lt’ stands for “local time”), which is a list with
components as integer vectors, and so can represent
a vector of broken-down times. We wanted to keep
track of timezones, so where known the timezone is
given by an attribute "tzone", the name of the timezone.
来源：R News
我终于平静了。
我很感兴趣，"ct" 和 "lt"（在 POSIXct 和 POSIXlt 中）是什么意思。它们是某种缩写吗？例如，"ct" 是否表示 "calendar time" 和 "lt" 其他意思？
ct = 连续时间，lt = 列表时间
和提问者一样（我怀疑），我发现理解首字母缩略词有助于我记住 when/how 并使用它们。
我找不到任何权威的 POSIX 参考资料。
我自己正在调查这个问题，这个问题出现在我的搜索结果中。
我已经看到了这个问题的几个答案...但他们显然都错了！这是最终答案：
POSIXct
The basic POSIX measure of time, calendar time, is the number of seconds since the beginning of 1970, in the UTC timezone (GMT as described by the French).
POSIXlt
The corresponding R class we called POSIXlt (where the ‘lt’ stands for “local time”), which is a list with components as integer vectors, and so can represent a vector of broken-down times. We wanted to keep track of timezones, so where known the timezone is given by an attribute "tzone", the name of the timezone.
来源：R News
我终于平静了。